3 years ago

Gia has 0.4 pounds of tuna. She eats 0.8, how much tuna did Gia eat?

1 answer:

3 0

If she has .4 pounds and she eats .8 pounds... She would have ate .8 pounds but she only has .4 pounds. This was not be possible to answer or we are missing information.

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A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 77 and a standar

Shalnov [3]

Answer:

0.9007 is the probability that a student scored below 86 on this exam.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 77

Standard Deviation, σ = 7

We are given that the distribution of examination grades is a bell shaped distribution that is a normal distribution.

Formula:

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

a) P(student scored below 86)

P(x < 86)

$P( x < 86) = P( z < \displaystyle\frac{86 - 77}{7}) = P(z < 1.2857)$

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

$P(x < 1.2857) = 0.9007 = 90.07\%$

0.9007 is the probability that a student scored below 86 on this exam.

7 0

3 years ago

What two numbers have a sum of 4 and product of 12

svetlana [45]

The numbers are 6 and -2.
6 + -2 is 4
as well as 6 x -2 is -12

5 0

2 years ago

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Tom is the deli manager at a grocery store. He needs to schedule employees to staff the deli department at least 260 person-hour

Finger [1]

The expression that could best describe the statement would be " 40 n + 20 $\geq$ 260.

3 0

3 years ago

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Determine whether the number could be the probability of an event. Explain your reasoning. -0.25

mr Goodwill [35]

yo sup??

The number can't be a probability of an event cause probability of an even lied between 0 and 1 whereas the number given to use is -0.25.

Since probability can't be negative therefore it isn't a probability of an event.

Hope this helps.

8 0

3 years ago

Mr.Cereola multiples some number x by some number y and then raises the product to the fourth power. If x=4 and y=3 find the end

sergij07 [2.7K]

Answer:

20736

Step-by-step explanation:

xy^4 = z

x=4 , y=3

(4*3)^4=z

12^4=z

z=20736

3 0

3 years ago