Question

Hello I just need help with A and B on my homework I was able to complete C

Answer 1

ANSWERS

a) 58

b) 62.2

Step-by-step explanation

a) The median is the middle value. It separates the data set in two. To find the median we have to put the data in order, from least to greatest:

`44,49,53,54,58,74,74,74,80`

The number of data is odd, this means that the median will be one of the values of the data set and not a mean between two of them. If there are 9 values, the median is the 5th value - so we have 4 values to the left and 4 values to the right.

The first 4 values are 44,49,53,54, so the median is 58.

b) The mean is the sum of all values of the data set divided by the amount of data:

`\bar{x}=(44+49+53+54+58+74+74+74+80)/(9)=(560)/(9)=62.2222\ldots`

Rounded to one decimal place, the mean is 62.2