Sales by quarter
units sold
16.000
14,000
12,000
ŏ 10.000
8,000
6,000
4,000
2,000
quarter1 quarter 2 quarter 3
quarter
quarter 4
a the x-axis is scaled too big or too small.
b. the y-axis is scaled too big or too small, or the y-axis does not start at 0.
c. the axes are not properly labeled or are incompletely labeled
d. the graph is not misleading.
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step-by-step explanation:

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step-by-step explanation:

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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