Answer: Mean = 8
Median = 8
Interquartile range= 4
The number of member use facility 10 days a month = 2
Step-by-step explanation:
From the given dot plot, the mean of the data is given by :-
, where f is represents the number of dots for each value and x represent the value on number line
The number of dots in the dot plot = 15 (odd)
Then, the term of median value = value of middle most dot = 8
Using the given box plot, the interquartile range of the data is given by :-
From dot , plot the number of member use facility 10 days a month = 2