3 years ago

Each of the 6 cats in a pet store was weighed. Here are their weights (in pounds):

Mathematics

1 answer:

Lesechka [4]3 years ago

4 0

Answer:

the median is 9,the mean is 9.3

Step-by-step explanation:

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A bakery wants to determine how many trays of doughnuts it should prepare each day. Demand is normal with a mean of 5 trays and

Alexeev081 [22]

Answer:

4 trays should he prepared, if the owner wants a service level of at least 95%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5

Standard Deviation, σ = 1

We are given that the distribution of demand score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(X > x) = 0.95

We have to find the value of x such that the probability is 0.95

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 5}{1})=0.95$

$= 1 -P( z \leq \displaystyle\frac{x - 5}{1})=0.95$

$=P( z \leq \displaystyle\frac{x - 5}{1})=0.05$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 5}{1} = -1.645\\x = 3.355 \approx 4$

Hence, 4 trays should he prepared, if the owner wants a service level of at least 95%.

3 0

3 years ago

Help a girl out!!!!!

anzhelika [568]

Answer:

I believe the answer is D. $20\frac{3}{4}$ Hope i'm right

Step-by-step explanation:

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3 years ago

Today only, a sofa is being sold at a 15% discount. The sale price is $782. What was the price yesterday?

PtichkaEL [24]

Answer:

prolly a lot

Step-by-step explanation:

5 0

3 years ago

You are running a fuel economy study. One of the cars you find is blue. It can travel 38 1/2 miles on 1 1/4 gallons of gasoline.

harkovskaia [24]

Answer:

30.8 miles per gallon

Explanation:

1.25 = 38.5

Divide both sides by 1.25

1 = 30.8

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2 years ago

Select the rational expression that is equivalent to the given expression<br> I<br> -<br> 3

Tcecarenko [31]

Answer:

another way to write this is 1:3

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3 years ago