The scatter plot shows the number of hours worked, x, and the amount of money spent on entertainment, y, by each of 25 students. 55
50
45-
401
352
Amount of
money spent on
entertainment
(in dollars)
X
30
25
20-
15+
10+
5
0
2
10 12 14 16 18 20 22
Number of hours worked
Use the equation of the line of best fit, y = 1.83x + 11.34, to answer the questions below.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

14.29%

step-by-step explanation: