The distribution of the amount of money spent on book purchases for a semester by college students has a mean of $280 and a standard deviation of $40. if the distribution is bell-shaped and symmetric, what proportion of students will spend between $200 and $280 this semester? round your answer to four decimal places.

0.4772

Step-by-step explanation:

Given : The distribution is bell shaped , then the distribution must be normal distribution.

Mean :

Standard deviation :

The formula to calculate the z-score :-

For x = $200

For x = $280

The p-value =

Hence, the proportion of students will spend between $200 and $280 this semester = 0.4772

step-by-step explanation:

i’m here for points.