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Rudik [331]
3 years ago
5

Question 5(Multiple Choice Worth 5 points)

Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0

Answer:

2.25

Step-by-step explanation:

(3^2•5^0/4)

9x1/4

9/4

2.25

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At Pike Place Fish Market in Seattle, customers can purchase a variety of different types of seafood. One type of seafood sold a
allsm [11]

Answer:

z=1.28

And if we solve for a we got

a=3.6 +1.28*0.8=4.624

So the value of height that separates the bottom 90% of data from the top 10% is 4.624.

So then the best answer for this case would be:

 C. 4.64

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(3.6,0.8)  

Where \mu=3.6 and \sigma=0.8

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.1   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.9 of the area on the left and 0.1 of the area on the right it's z=1.28. On this case P(Z<1.28)=0.9 and P(z>1.28)=0.1

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=1.28

And if we solve for a we got

a=3.6 +1.28*0.8=4.624

So the value of height that separates the bottom 90% of data from the top 10% is 4.624.

So then the best answer for this case would be:

 C. 4.64

8 0
3 years ago
For a birthday party Mr. Perkins or do you eat chocolate chip cookies and 16 sugar cookies each cookie is the same price he also
Ilya [14]

Question is not proper, Proper question is given below;

For a birthday party, Mr. Perkins orders 8 chocolate chip cookies and 16 sugar cookies. Each cookie is the same price. He also picks up a cupcake for himself, which costs $2.75. The total bill is $44.03. What is the cost of a cookie?

Answer:

The Cost of the cookie will be $1.72.

Step-by-step explanation:

Given:

Mr Perkins orders 8 chocolate chip cookies and 16 sugar cookies.

Since cost of both the cookies are same then Let us assume the cost of cookies be 'x'.

Total cost of the cookies = (8 + 16)x = 24x

Cost of Cup cakes = $2.75.

Total bill he pays = $44.03

We need to find the cost of each cookies.

Now we know that Total bill he pays is equal to sum of Cost of cookies and Cost of Cup cakes he bought.

Framing in equation form we get;

44.03 = 24x + 2.75

Now Subtracting both side by 2.75 using Subtraction property we get;

2.75+24x-2.75 = 44.03 - 2.75\\\\24x = 41.28

Now Dividing both side by 24 using Division property we get;

\frac{24x}{24} = \frac{41.28}{24}\\\\x=1.72

Hence The Cost of the cookie will be $1.72.

6 0
3 years ago
It is recommended that 3/5 of the calories a person consumes come from carbohydrates. If 1/12 of those calories should be from f
Alexandra [31]
1/12 (3/5) = 3/60 reduces to 1/20 <== comes from fiber
7 0
2 years ago
29 kg of onions cost $145.how much would 12 kg cost?
Romashka-Z-Leto [24]
I am pretty sure the answer is 60 because 145 divided by 29 is 5 you multiply by 12 you get 60
7 0
3 years ago
Find the two numbers whose sum is 54 and whose difference is 4
galina1969 [7]

Answer:

25 and 29

Step-by-step explanation:

25 + 29 = 54 and there is a difference of 4 between them

4 0
3 years ago
Read 2 more answers
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