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Viktor [21]
3 years ago
6

Luke went fishing and caught a trout that

Mathematics
1 answer:
Elden [556K]3 years ago
8 0

Answer:

40 ounces

Step-by-step explanation:

a pound is 16 ounces so 2 and a half is 40 ounces

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Thickness measurement ancient prehistoric Native American Pot Shards discovered in Hopi Village are approximately normally distr
beks73 [17]

Answer:

a) P(X

And we can find this probability using the normal standard table and we got:

P(z

b) P(X>7)=P(\frac{X-\mu}{\sigma}>\frac{7-\mu}{\sigma})=P(Z>\frac{7-5.1}{0.9})=P(z>2.11)

And we can find this probability using the complement rule and the  normal standard table and we got:

P(z>2.11)=1-P(Z

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 variable of interest of a population, and for this case we know the distribution for X is given by:

X \sim N(5.1,0.9)  

Where \mu=5.1 and \sigma=0.9

Part a

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table and we got:

P(z

Part b

We are interested on this probability

P(X>7)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

P(X>7)=P(\frac{X-\mu}{\sigma}>\frac{7-\mu}{\sigma})=P(Z>\frac{7-5.1}{0.9})=P(z>2.11)

And we can find this probability using the complement rule and the  normal standard table and we got:

P(z>2.11)=1-P(Z

4 0
3 years ago
Jackie wants to serve a fruit punch mature at her birthday party. She experiments to see which type of mixture tastes the best.
777dan777 [17]

Answer:

i think its 6 cups

Step-by-step explanation:

3 0
2 years ago
Please help with number 3 i dont understand it
prisoha [69]
I believe the answer is A.

Absolute value best proves my answer.

Absolute value is how far a number is from zero.
6 0
3 years ago
Read 2 more answers
Mary Ann and Abigail were shopping for prom shoes and wondered how the prices at Payless compared to the prices at Famous footwe
Komok [63]

Answer:

Step-by-step explanation:

how the prices at Payless compared to the prices

at Famous Footwear. At each store, they randomly

selected 30 pairs of shoes and recorded the price of

each pair. The table shows summary statistics for

the two samples of shoes.28

Store

Mean

SD

Famous Footwear

$45.66

$16.54

Payless

$21.39 $7.47

Do these data provide convincing evidence at the

0.05 significance level that shoes cost less

, on

average, at Payless than at Famous Footwear?

a =

7 0
3 years ago
HELP WHATS THE ANSWER
Rom4ik [11]

Answer:

13.5

Step-by-step explanation:

4 0
3 years ago
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