A) p(z < -1.26)
b) p(z > 1.48)
c) p(1.44 < z< 2.79)

Explanation:

You need to use a table with the cumulative normal standard distribution, which shows the areas for different values of Z-scores.

I attached part of the table for the cumulative probability that  gives the probability that a statistic is between 0 (the mean) and Z.

a) P (Z < - 1.26)

The table shows the probabilities for positive values of Z. Since the normal distribution is symmetric P (Z < - 1.26) = P (Z > 1.26).

Also, note that you will find the probability for Z ≤ 1.26, so the probability that you want is P (Z > 1.26) = 1 - P(Z ≤ 1.26)

b) P (Z > 1.48)

c) P (1.44 < Z < 2.79)

the correct answer is x/3+10≥32

hope this !

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.