Which measure summarizes all of the values of a data set with a single number?

a) range

b) median

c) first quartile

d) standard deviation

Step-by-step explanation:

I think its the median

Median

Step-by-step explanation:

Median

Median summarizes all of the values of a data set with a single number. The range, standard deviation, and first quartile all describe how the values of a data set vary with a single number.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest