The average score of 100 students taking a statistics final was 70 with a standard deviation of 7. Assuming a normal distribution, what test score separates the top 5% of the students from the lower 95% of students?

Hence, the answer is

Step-by-step explanation:

We have,

The top percentage of the students is

The  lower percentage of the students is

The lowest is the left area from the normal distribution table, the area lies in the z-table

      from the z- table

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x