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Ivenika [448]
3 years ago
7

Mr. Barnett’s test is normally distributed with a mean of 65 with a standard deviation of five points what is the probability th

at a randomly selected score is greater than 75 points

Mathematics
1 answer:
uranmaximum [27]3 years ago
4 0

Answer: 2.5%

Step-by-step explanation:

Mean score = 65

Standard deviation = 5

Score (x) = >75

Z-score = [(score - mean) ÷ standard deviation]

Z - score = [(75 - 65) ÷ 5]

Z - score = 10 ÷ 5 = 2

P(score higher than 75) = 100 - 95 = 5/2 = 2.5%

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Step-by-step explanation:

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2 years ago
I will mark you brainlist!
prisoha [69]

Answer:

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3 years ago
The price of a computer component is decreasing at a rate of 15​% per year. State whether this decrease is linear or exponential
Margaret [11]

Answer:

Since the price is given by an exponential function, the decline in price is exponential.

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Step-by-step explanation:

The equation for the price of a component has the following format:

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Since the price is given by an exponential function, the decline in price is exponential.

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The component will cost $36.8475 in three years.

6 0
3 years ago
Is 10 L greater than 1,000 mL?
babunello [35]
Yes, 1L is 1000 mL so 10L is 10,000 mL
4 0
3 years ago
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A cell phone company tests 75 cell phones and finds that 3 of them have defects. Out of 450 cell phones, how many would you expe
Hoochie [10]

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75 x 6= 450

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3 0
3 years ago
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