An artist sold 10 paintings. Her first two sold for $50 and $350. She sold three at a gallery show for $250, $400 and $1,200. Sh

Question

3 years ago

6

An artist sold 10 paintings. Her first two sold for $50 and $350. She sold three at a gallery show for $250, $400 and $1,200. Sh

e sold her oil paintings on line for $410, $400 and $375. Family members bought two, one for $200 and another for $280. What is the IQR of the selling price of her paintings?

Mathematics

2 answers:

eduard · Answer 1 · 2022-04-19T19:00:55+03:00

eduard3 years ago

4 0

Answer:

250-400

Step-by-step explanation:

podryga [215] · Answer 2 · 2022-04-19T16:45:43+03:00

Answer:

150

Step-by-step explanation:

There are 10 numbers representing the selling prices of paintings.

List the numbers in the ascending order:

50, 200, 250, 280, 350, 375, 400, 400, 410, 1200

Median of the lower half is:

50, 200, 250, 280, 350 ⇒ Q1 = 250

Median of the upper half is:

375, 400, 400, 410, 1200 ⇒ Q3 = 400

The IQR is the difference between the upper and lower medians:

IQR = Q3 - Q1 =
400 - 250 = 150