Preciso da resposta dessa questao

88

Step-by-step explanation:

To calculate the mean of data, we have to add up all of the data and divide by the number of data available.

Let's see how much data is available:

We have: 9 engineering majors, 5 math majors, and 13 business majors

9 + 5 + 13 = 27

The engineering majors have a mean of: 91

math majors: 93

business majors: 84

To solve multiply the number of each major with their designated mean score, add each product, and divide by the total number of students

(9*91) + (5*93) + (13*84) = 2376

2376/27 = 88