I’m not sure on this at all. Anybody who can help?

The mean of the data set with outlier = 16

The mean of the data set without outlier = 13

Step-by-step explanation:

The mean is also sometimes called the average, to find the mean, you add up every number in the data set, and you divide that sum by the total number of data points within the set.

Given: The data set 12 , 14 , 15 , 28 , 11

Arranging the data in order from the least to the greatest

11 , 12 , 14 , 15 , 28

The number of data set = 5

The sum of the data set = 11 + 12 + 14 + 15 + 28 = 80

So, the mean = 80/5 = 16

The outlier of the data set is 28 because most of the date between 11 , 15

The data without outlier are: 11 , 12 , 14 , 15

The number of data set = 4

The sum of the data set = 11 + 12 + 14 + 15 = 52

So, the mean = 52/4 = 13

answer: i'm not sure

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!