Suppose ACT Reading scores are normally distributed with a mean of 21.221.2 and a standard deviation of 6.26.2. A university plans to award scholarships to students whose scores are in the top 6%6%. What is the minimum score required for the scholarship? Round your answer to the nearest tenth, if necessary.

The minimum score required for the scholarship is 30.95.

Step-by-step explanation:

We are given that ACT Reading scores are normally distributed with a mean of 21.2 and a standard deviation of 6.2.

A university plans to award scholarships to students whose scores are in the top 6%.

Let X = ACT Reading scores

SO, X ~ N()

The z-score probability distribution is given by ;

                  Z = ~ N(0,1)

where, = mean score = 21.2

            = standard deviation = 6.2

Now, the minimum score required for the scholarship so that students  are in the top 6% is given by ;

              P(X ) = 0.06   {where is minimum score required}

             P( ) = 0.06

             P(Z ) = 0.06

Now, in z table we will find out that critical value of X for which the area is in top 6%, which comes out to be 1.57224.

This means;        

                              = 21.2 + 9.7478 = 30.95

Therefore, the minimum score required for the scholarship is 30.95.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

168

step-by-step explanation:

i am pretty sure that the answer is 168