08-02-2021
Mathematics

contestada

Can someone help on this please?

Can someone help on this please class=

Respuesta :

wafflefly21 wafflefly21

13-07-2022

Answer:

The mean is 8.4

Step-by-step explanation:

First you find the class centers.

3-6 = 4.5

7-10 = 8.5

11-14 = 12.5

15-18 = 16.5

The sum of all the scores = 4.5 * 7 + 8.5 * 10 + 12.5 * 6 + 16.5 + 2 = 210

The sum of the number of scores = 7 + 10 + 6 + 2 = 25

The mean = 210/25 = 42/5 = 8.4

Answer Link

Otras preguntas

whats the solution for y+5x=17

What is 34,235,345 in word form

how many lawns can you mow with one gallon of gasoline if you maintain the rate of 1/2 gallon of gasoline per 1/4 lawn mowed

the difference between 2times r and 3 times the square root of t express algebraically

Translate the word phrase into a math expression. nine more than five times a number a. 9 > 5n b. 9 – 5n c. 5n – 9 d. 5n + 9

Please solve -5x+3(2x+4)=15

The town of Jackson, Bellevue, Salem and Denton lie along a highway, in order listed. The distance from Jackson to Salem is 84 miles. THe distance from Bellevue

Describe 3 possible ways in which a hypothesis may arise

ratio equivalent to 12:21 with lower terms

Which is a sentence fragment? a. Sitting nervously in the office was a young girl. b. Look! c. By the kitchen door was a bag of lemons. d. Books, papers, an