We are given that random sample of identical model sports cars are normally distributed with mean of 120000 miles and standard deviation of 30000 miles.

$\mu=120000, \sigma = 30000$

We have to find approximately how many sports cars will have less than 150000 miles on the odometer.

We will first find the z-score for 150000.

$z=\frac{x-\mu}{\sigma}$

$=\frac{150000-120000}{30000}$

$=1$

Now using the standard normal table, we have:

$P(z$

Now there will be approximately $0.8413 \times 6000=5047.8 \approx 5048$ sport cars will have less than 150000 miles on the odometer.

6 0

3 years ago

6. Travis slept for 485 minutes last night. This number is 32 more minutes than Brady slept. Write an equation that would help y

nignag [31]

Subtract 32 from 485 and there is ur answer

6 0

3 years ago

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Suppose that a box contains one fair coin and one coin with a head on each side. suppose that a coin is selected at random and t

lukranit [14]

There is a 50% chance it is the fair coin

4 0

4 years ago

Is the equation y = -1 proportional or non proportional?

mash [69]

Answer: From my knowledge it was Non proportional but get some other answers to be sure!

5 0

3 years ago

Read 2 more answers