Question

the following five questions refer to the histogram below showing the age brackets of the customer base of an online store

question 1 (1 point) ✓ saved
the highest share of customers falls within
○ (30 to 35 age group
● (25 to 30 age group
○ (50 to 55 age group
○ (45 to 50 age group

question 2 (1 point) ✓ saved
the share of customers in the (25 to 40 age group is:
○ 41%
○ 35%
● 47%
○ 32%

question 3 (1 point)
q1 falls in the:
○ (20, 25 age group
○ (25, 30 age group
○ (30, 35 age group
○ cannot say

question 4 (1 point)
q3 falls in the:
○ (45, 50 age group
○ (50, 55 age group
○ (55, 60 age group
○ cannot say

question 5 (1 point)
the median falls in the:
○ (30 to 35 age group
○ (35 to 40 age group
○ (40 to 45 age group
○ cannot say from histogram

Explanation:

Question 1

By observing the histogram, the bar for the (25 to 30] age group is the tallest, indicating the highest number of customers in that group.

To find the share of customers in (25 to 40], we sum the frequencies (or heights of bars) for age groups (25 - 30], (30 - 35], (35 - 40], then divide by total customers and convert to percentage. From the options, 47% matches the calculated share.

Q1 (first quartile) is the value where 25% of data is below it. Analyzing the cumulative frequency from the histogram, Q1 falls in the (25, 30] age group as the cumulative frequency reaches 25% within this interval.

Answer:

B. (25 to 30] age group

Question 2