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# Four-vear-olds in China average 45 unsupervised hours per day: Most of the unsupervised children live in rural areas, considered safe Suppose that the amount of uns...

## Question

###### Four-vear-olds in China average 45 unsupervised hours per day: Most of the unsupervised children live in rural areas, considered safe Suppose that the amount of unsupervised time is normally distributed with standard deviation 15 A Chinese 4-year-old is randomly selected from rural area_ We are interested in the amount of time the child spends alone per day:In each appropriate box you are to enter either rational number in "plq" format or a decimal value accurate to the nearest 0.01(.2

Four-vear-olds in China average 45 unsupervised hours per day: Most of the unsupervised children live in rural areas, considered safe Suppose that the amount of unsupervised time is normally distributed with standard deviation 15 A Chinese 4-year-old is randomly selected from rural area_ We are interested in the amount of time the child spends alone per day: In each appropriate box you are to enter either rational number in "plq" format or a decimal value accurate to the nearest 0.01 (.25) In words, the random variable in which we are interested is defined by X = (pick onel b. (.25) Find the probability that the child spends less than one hour per day unsupervised: P(X < 1) = (.25) What is the probability that the child will spend over ten hours per day unsupervised_ P(X 10) (.25) The 70th percentile of the distribution of unsupervised time is given by 0.70  #### Similar Solved Questions

##### 35. Which values reflect the expected glucose concentrations (in mM) in samples collected from different regions of the nephron in the following order: Bowman's capsule, beginning of proximal convoluted tubule, intermediate segment, middle of distal convoluted tubule, and beginning of collecting duct? a. 0; 1; 2;3;2 b. 2; 2; 0; 0; 0 0; 0; 0; 0; 0 d.2;2; 2; 0; 036 . A molecule greater than nephronskilodaltons cannot pass through thea. 6.5 b. 9 9.5 d. 12.537 In insects_ primary urine of forme
35. Which values reflect the expected glucose concentrations (in mM) in samples collected from different regions of the nephron in the following order: Bowman's capsule, beginning of proximal convoluted tubule, intermediate segment, middle of distal convoluted tubule, and beginning of collectin...
##### Identify potential outliers, if any; for the given data_ The nonal annua precipitation (in inches) is given below for 21 different U.S. cities.32.4 29.4 34.6 65.3 22.1 31.8 16.6 28.2 36.2 59.4 24.3 47.2 45.6 9.2 18.9 13.6 31.4 24.2 12.3 35.465.3 9.2,59.4 , 65.3 59.4, 65.3 D:9.2,12.3 0E NoneClick to solect your anawer
Identify potential outliers, if any; for the given data_ The nonal annua precipitation (in inches) is given below for 21 different U.S. cities. 32.4 29.4 34.6 65.3 22.1 31.8 16.6 28.2 36.2 59.4 24.3 47.2 45.6 9.2 18.9 13.6 31.4 24.2 12.3 35.4 65.3 9.2,59.4 , 65.3 59.4, 65.3 D:9.2,12.3 0E None Click ...
##### Model cannot acc oints) model? Can it explain effects for which the simplified total) circular loop (30 points with 'disected vertically upward area through of0.86 m? lies in the horizontal plane. field is magnetic +C1t-Cz/ For these calculations that loop That field changes with time at & rate given by B = Bo use the following values for the constants: Bo = 0.065 T; =41X 10- 4 Ts}C326X10-Ts} C1 magnetic field Find the strength [= 0. (6 points) emf induced in Find the the loop due t
model cannot acc oints) model? Can it explain effects for which the simplified total) circular loop (30 points with 'disected vertically upward area through of0.86 m? lies in the horizontal plane. field is magnetic +C1t-Cz/ For these calculations that loop That field changes with time at &a...
##### The correlation between X and Y is calculated and recorded as rxx (and rxx is negative). A linear transformation is performed on X The linearly transformed variable is called W; where W; = (8)Xi The correlation between W and Y is calculated and recorded as Cwx In this example_ rxx would definitely be the same as Cwx Cxx would definitely not be the same as Cwx rxx might be the same as Cwx but might not beB)
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##### The representation of the S-orbitals of the two H-atoms in HzO isCv E 6.(2) 6.012) 2 # Give similarly the representations of: a) the S-orbitals of the H-atoms in ammonia, methane; and benzene b) the p--orbitals of the Cl-atoms in square-planar PtCL?
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##### 17: Finding Gravitational Force 02 10.0 pts possible An apparatus like the one Cavendish used to find G has large lead halls that are 8.1 kg in mass and small ones that are 0.052 kg: The center of a large hall is separated by 0.058 m from the center of a small ball:MirrorLight sourceThe Cavendish apparatus for measuring G As the small spheres of mass are attracted to the large spheres of mass M , the rod between the two small spheres rotates through a small angle. Find the magnitude of the gravi
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##### Up NenPrev1Which of the graphs below are bipartite? Justify your answers.7. For which n > 3 is the graph Cn bipartite? For each of the following try to give two different unlabeled graphs with the given properties, or explain why doing so is impossible: a. Two different trees with the same number of vertices and the same number of edges A tree IS a connected Igraph with no cycles: b: Two different graphs with 8 vertices all of degree 2. â‚¬ Two different graphs with 5 vertices all 0f degree 4
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##### Arder to estmate the mean 30-ycar fixed morigage rate for homo Ioan Unicd Statcs; ranaom sanplc 0f 24 receni IoonsG9 taken ~avctoge colculaied irom thls sample 0,80 con be assumed that 30 year ilxed mortgnge ratos are normolly disuilbutod standard deviatlon of e 5%,, Campute 9518 and 9gru confidence Intervals tor the populallon mcan 30-ycar fixcd mortgaqe raic_ (You may lind useful t0 relerence the z Ible. Round Intermedinte calculationa at Ieaet dncimalplacet Round valua lo 3 declmal places a
arder to estmate the mean 30-ycar fixed morigage rate for homo Ioan Unicd Statcs; ranaom sanplc 0f 24 receni IoonsG9 taken ~avctoge colculaied irom thls sample 0,80 con be assumed that 30 year ilxed mortgnge ratos are normolly disuilbutod standard deviatlon of e 5%,, Campute 9518 and 9gru confidenc...
##### Find $f^{-1}$ and verify that $\left(f \circ f^{-1}\right)(x)=\left(f^{-1} \circ f\right)(x)=x$. $$f(x)=\frac{1}{x^{2}}, \quad x>0$$
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##### 2. A dielectric rod of length L is on the X-axis and it has charge fixed on it: linear charge density on the rod is given by A-%,if0sx< and A = %,if <x< What is the electric potential at the point (a,b) because of this charge distribution?
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##### Sketch a graph of the surface and briefly describe it in words.$$x^{2}+y^{2}+z^{2}=9$$
Sketch a graph of the surface and briefly describe it in words. $$x^{2}+y^{2}+z^{2}=9$$...
##### Question 12 ptsWhich of these statements is NOT true about substrate-level phosphorylation?A phosphate group is transferred to an ADP molecule:A phosphate group is removed from an organic moleculeAn exergonic reaction and an endergonic reaction are coupled.AIl of the ATP made in cells is made by substrate-level phosphorylation:Question 22 ptsWhich of these is NOT a similarity between the glycolysis and the citric acid cycle?As the reactions proceed, a molecule is broken down; releasing free ener
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##### Determine if the following vectors are orthogonalu=-5Are the two vectors orthogonal? (Type an integer or a fraction:) 0A The vectors u and v are orthogonal because u +v =0 B. The vectors U and v are orthogonal because u *vC The vectors u and v are not orthogonal because u +v =D. The vectors U and v are not orthogonal because u -v
Determine if the following vectors are orthogonal u= -5 Are the two vectors orthogonal? (Type an integer or a fraction:) 0A The vectors u and v are orthogonal because u +v = 0 B. The vectors U and v are orthogonal because u *v C The vectors u and v are not orthogonal because u +v = D. The vectors U...
##### Metaphase occurs prior to the splitting of centromeres. It is characterized by A cytokinesis B. disassembly of the nuclear envelope Caligning of chromosomes on the equator D. duplication of centrioles
Metaphase occurs prior to the splitting of centromeres. It is characterized by A cytokinesis B. disassembly of the nuclear envelope Caligning of chromosomes on the equator D. duplication of centrioles...
##### A 7.0 mass $\%$ solution of $\mathrm{H}_{3} \mathrm{PO}_{4}$ in water has a density of 1.0353 $\mathrm{g} / \mathrm{mL}$ . Calculate the $\mathrm{pH}$ and the molar concentrations of all species present $\left(\mathrm{H}_{3} \mathrm{PO}_{4}, \mathrm{H}_{2} \mathrm{PO}_{4}^{-}, \mathrm{HPO}_{4}^{2-}\right.$ $\mathrm{PO}_{4}^{3-}, \mathrm{H}_{3} \mathrm{O}^{+},$ and $\mathrm{OH}^{-}$ ) in the solution. Values of equilibrium constants are listed in Appendix C.
A 7.0 mass $\%$ solution of $\mathrm{H}_{3} \mathrm{PO}_{4}$ in water has a density of 1.0353 $\mathrm{g} / \mathrm{mL}$ . Calculate the $\mathrm{pH}$ and the molar concentrations of all species present \$\left(\mathrm{H}_{3} \mathrm{PO}_{4}, \mathrm{H}_{2} \mathrm{PO}_{4}^{-}, \mathrm{HPO}_{4}^{2-}\...
##### A Voltaic cell is set up at 25 Â°C with the half-cellsAl3+(0.0010 M) |Al and Ni2+(0.50 M) |Nia.Write an equation for the reaction that occurs when the cellgenerates an electric current.b.What is the standard cell potential, EÂ°cell?c.Determine the cell potential of the concentration cell.Use the following reduction potentials in the problemsbelow:Ag+ (aq) + e- â†’ Ag (s). EÂ° = 0.7994VCu2+ (aq) + 2 e- â†’ Cu (s). EÂ° = 0.337VNi2+ (aq) + 2 e- â†’ Ni (s). EÂ° = -0.257VAl3+ (aq) + 3 e- â†’ Al (s).
A Voltaic cell is set up at 25 Â°C with the half-cells Al3+(0.0010 M) |Al and Ni2+(0.50 M) |Ni a.Write an equation for the reaction that occurs when the cell generates an electric current. b.What is the standard cell potential, EÂ°cell? c.Determine the cell potential of the concentration cell. U...