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12345 [234]
3 years ago
6

Assume that in a statistics class the probability of receiving a grade of A equals .30 and the probability of receiving a grade

of B equals .30. The probability that a randomly selected student from this class will receive either an A or a B equals.
a. .09
b. .6
c. .9
d. .3
Mathematics
1 answer:
Tom [10]3 years ago
6 0

Answer:

Answer D is correct

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The number of students who enroll in a psychology course is a Poisson random variable with mean 105. The professor in charge of
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Answer:

The answer is "0.096".

Step-by-step explanation:

In this question, the X is a number of the students who enroll in a psycholog y course,  follows a Poisson distribution with mean = \lambda= 105  

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2 years ago
A rectangle has a width of 10cm. The rectangle length is 4 times its width
Nana76 [90]

Answer:

P = 100 centimeters (assuming you are asking for the perimeter)

Step-by-step explanation:

P = 2 (L + W) OR P =  2L + 2W where P equals the perimeter, L equals the length, and W equals the width.

Since the rectangle's length is 4 times its width and given we know the width is 10 centimeters, then the length is 40 centimeters. Now we can substitute these values in our formula, okay?  

P = 2 (L + W)  

P = 2 (40 + 10)  

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8 0
3 years ago
A rectangle measures 2 1/2 inches by 3/4 inches What is its area?
il63 [147K]

Answer:

1 7/8

Step-by-step explanation:

I think you need to times it like 2 1/2 x 3/4, first you make 2 1/2 into 5/2 then times it like this 5/2 x 3/4. the answer is 1 7/8

8 0
2 years ago
Read 2 more answers
What is the length of the unknown leg in the right triangle 9 and square root of 113
Veronika [31]

Can you try rewording this question?

4 0
3 years ago
Six divided by three fifths
Slav-nsk [51]
The answer is 10. I hope that this helped ☻
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