On tuesday there were 23 students absent from school. The total number of students at school that day was 372 students. How many students attend the school.

The number of students attend the school = 349

Step-by-step explanation:

Given: Number of students absent on Tuesday = 23

Total number of students = 372

Number of students attend the school that day = (total students) -  (Number of students absent  )

= 372-23

= 349

Hence, the number of students attend the school that day = 349

Option b = 90 degrees of freedom.

Step-by-step explanation:

So, in this particular Question we are given the following parameters or data or information which is going allow us to be able to solve this particular problem or Question;

=> "A regression analysis involved 8 independent variables"

=> "99 observations. "

Requirement : to determine the critical value of t for testing the significance of each of the independent variable's coefficient.

Hence, the formula below will used in Calculating or in the determination of the degree of freedom;

Degree of freedom= total number of observations - number of independent variables- 1.

Thus, slotting bin the values into the formula above, we have;

The degree of freedom = 99 - 8 - 1 = 90.