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maksim [4K]
3 years ago
14

Independent and dependent events pls help 49 points

Mathematics
1 answer:
Contact [7]3 years ago
6 0

Answer: im so sorry i dont know this

Step-by-step explanation:

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Suppose that you are conducting a survey on how many students have blue eyes in each first period classroom at Garfield Middle s
rusak2 [61]

Answer:

  • <u>The correct statement is the first one: </u><u><em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean</em></u><em> </em>

<em />

Explanation:

To calculate how many<em> standard deviations</em> a particular value in a group is from the mean, you can use the z-score:

      z-score=(x-\mu )/\sigma

Where:

  • z-score is the number of standard deviations the value of x is from the mean
  • \mu  is the mean
  • \sigma  is the standard deviation

Substitute in the formula:

       z-score=(10-6)/2=4/2=2

Which means that <em>the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations</em> above the mean.

Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.

Therefore, the correct statement is the first one: <em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean, </em>

4 0
3 years ago
Angle WOM is congruent to angle ___. Why?
____ [38]

Answer:

WOM is congruent to angle TWO

Step-by-step explanation:

I did Geometry, I got A+

5 0
2 years ago
Read 2 more answers
calcola la misura della diagonale di un rettangolo sapendo che il perimetro è 388 cm e la base misura 168.
Hoochie [10]

Answer:

41.6 cm

Step-by-step explanation:

5 0
2 years ago
Entomologists estimate that an average person consumed almost a pound of bug parts each year. There are that many insect eggs, l
gregori [183]

Answer:

0.9797

Step-by-step explanation:

We have X = number of insects in the 25bgrams of butter

Then the legal limit of concentration in peanut butter = 30 fragments/ 100 grams

Then insect amount in 25 grams =

E(X) = 30/100 x 25

= 0.3 x 25

= 7.5 fragments of insects

Using the poisson function in Excel, the probability of at least 3 crunchy critters

1 - p(X<=2)

p(X<=2) = POISSON (2, 7.5, TRUE) = 0.020156715

1 - 0.020156715

= 0.9797

7 0
3 years ago
|2x-5|=9 please awnser i need this for math
7nadin3 [17]

Answer:

7

Step-by-step explanation

2x = 14

divide by 2

8 0
1 year ago
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