The random variable X is normally distributed with mean μ=30 and standard deviation σ =10. Use the transformation $\frac{X-\mu}{\sigma}$ for calculating the probability. This value is called Z-score.

The Z score is $Z=\frac{40-30}{10} =1$ .

Refer to the standard normal distribution table.

The probability

$P(X>40)=P(Z>1)=1-P(Z$

8 0

3 years ago

You spent $88.50 at Target. You happen to have a $25 gift card from your birthday. If the sales tax rate was 6.5%, how much did

Nonamiya [84]

Answer:

67.6275

Step-by-step explanation:

ok so 88.5-25=63.50

63.50*6.50%=4.1275

63.50+4.1275=67.6275

3 0

4 years ago

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How many dots will the next term in the pattern have?

Aliun [14]

Answer:

Step-by-step explanation:

By counting the dots, you can see a repeating pattern of adding 3 dots:

7, 10, 13, 16

Hope this helps!

6 0

3 years ago

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