Find the values of the 30th and 90th percentiles of the data. show your work step by step. 129, 113, 200, 100, 105, 132, 100, 176, 146, 152 ! : )

So we would first add all the data points and set them equal to x
129+113+ 200+100+105+132+ 100+ 176+146+ 152= x
So x = 1353
Now to find the 30 /90 percentile multiply x by .3/.9
So the 30th percentile should be 405.9
And the 90th percentile should be 1217.7

100 and 176

Step-by-step explanation:

129, 113, 200, 100, 105, 132, 100, 176, 146, 152

Arrange in ascending order

100,100, 105, 113, 129, 132, 146, 152,176, 200

The 10th percentile would be the I entry 100

The 90th percentile would be 176

So answers are

100 and 176

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt