Chucky grabbed 12 items in the grocery store that each had a different price and had a mean cost of about $7.41. One of the items was an entire wheel of cheese that cost $39.99. How will removing the wheel of cheese affect the mean and median?

The correct answer is mean would decrease but there will be no noticeable change in median.

Step-by-step explanation:

Chucky grabbed 12 items in the grocery store. Mean cost of all the items is $7.41.

Total cost of all the items that Chucky grabbed = $ (12 × 7.41) = $88.92.

One item namely, wheel of cheese costing $39.99 is being removed from all the item Chucky bought.

∴ Price of leftover 11 items = $ (88.92 - 39.99) = $48.93

The new mean of 11 leftover grocery items = $ ( ) = $4.45.

Thus the mean value has decreased from $7.41 to $4.45.

The median whereas will not change as one of the outlier value has been removed.

Thus the median will remain the same.

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl