Okay, so over here. Mhm. Our standard cove is this where commune is 50. This is the mean and Sigma is the standard deviation is seventh. I want to find the probability that my ex is greater than 38 less than equal to 55 Probability that my X is greater than 38 less than equal to 55 where I studied somewhere around here. Where is 55? Somewhere around here. So I want this probability. Okay, so how do I find this? What I can do is I can find the p value for the statistic corresponding to 38. Right? Which will give me that is just draw standard Normal co, this is zero. Okay, let me just find those that statistics for these 2, 38 55. So we know the value. Sorry. The formula to find the statistic is X minus meal by sigma. So 38 minus 15 is minus 12 by seven. So this is nothing but minus one point 71 four. Okay, so what is this? Z statistic? Minus 1.714 and the P values minus one points minus one point 714 I had calculate and I get my just a moment. Yeah, my P value is 0.43 So, uh, so this is minus 1.714 And this p value that is this region is 0.43 0.43 Similarly, I can find the Z statistic for 55 its corresponding p value. So the 55 minus 50 is 55 by seven. Happens to be 0.7 14 Okay, so what is the P value for 0.714? This is 0.714 I had to calculate, and I get as 0.2376 point 2376 So this is 0.714 and its corresponding P value that is area of this shaded region is 0.23 76.2376 So I want the area between these two right in this area. So this is going to be one minus point 0.2376 That is this shaded region minus this shaded region minus zero point 0433 Okay, so let us use the calculator This is one minus 0.2376 minus 0.433 this 0.7191 So this probability, the area over here in between is 0.7191 So I can say that this is 0.7191 and this is my answer.