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gayaneshka [121]
3 years ago
7

The mean number of touchdowns per football game is 3.7 with a population standard deviation of 0.9. A random sample of 31 footba

ll games was taken and the probability that the mean number of touchdowns for the sample will be more than 3.9 was found. Was the probability a Left-tail, Right -tail or Interval Probability
Mathematics
1 answer:
frez [133]3 years ago
4 0

Answer:

Right Tail

P(x>3.9)= 0.108

Step-by-step explanation:

In excel, type =NORM.DIST(3.9, 3.7, 0.162, TRUE).

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3 3/8 divided by 2 1/4 =
denpristay [2]

Answer:

1.5 or 1/5

Step-by-step explanation:

Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.

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3 years ago
Please help me . factor. X^2-13x+40
Ainat [17]
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(x - 8)(x - 5) works. -8 - 5 = -13, which is what you need in the middle, and -8*-5 gives you a positive 40.</span>
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HELPPP ( WILL MARK AS BRAINLIEST)
siniylev [52]

Answer:

its answer is 5z or 5×z

Step-by-step explanation:

becoz product means (×)

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In the rectangular prism below, the length of MR is 8 inches, the length of RS is 9 inches, and the length of ST is 12 inches.Wh
kari74 [83]
84 is your awnser if i helped i hope im in fourth grade so dont judge
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What is the factored form of x^2-x-2? ​
ipn [44]

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(x+1)(x-2)

Step-by-step explanation:

You can factor this by grouping.

x^2-x-2

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x\left(x+1\right)-2\left(x+1\right)

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