Question

Suppose the mean of 15 suppose the mean of 15 numbers in a data set is 30. If the number 58 is included as an additional
data value, what would be the new mean? Record the result below accurate to two decimal places.

New Mean:

Answer 1

Answer:

88.00

Step-by-step explanation:

(a+b+c+x+y+...+z)/15=30

(a+b+c+x+y+...+z) is the 15 numbers

(a+b+c+x+y+...+z+58)/16=88

a+b+c+x+y+...+z+58=1408

a+b+c+x+y+...+z=1350

(1350+58)/16=88

To two decimal places? I would put the answer as 88 but I guess it would be 88.00...? Sorry if it's wrong, but I hope this helps a little! :)