A sample of 1200 computer chips revealed that 31% of the chips fail in the first 1000 hours of their use. The company's promotional literature claimed that less than 34% fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.05 level to support the company's claim?

In the data set shown below, what is the value of the quartiles?

{42, 43, 44, 44, 48, 49, 50}

A.Q1 = 43.5; Q2 = 44; Q3 = 49

B.Q1 = 43; Q2 = 44; Q3 = 48.5

C.Q1 = 43.5; Q2 = 44; Q3 = 48.5

D.Q1 = 43; Q2 = 44; Q3 = 49

Step-by-step explanation:

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.