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AVprozaik [17]
3 years ago
8

A basketball team has 2 freshmen, 5 sophomores, 3 juniors, and 4 seniors. If a captain is chosen at random, what is the probabil

ity that it’s not a senior?
Mathematics
1 answer:
Colt1911 [192]3 years ago
7 0

Answer:

10/14 or about a 71% chance

Step-by-step explanation:

First you add up all of the players and you get 14. If, at random the coach picks a player, to find the chance that it is not a senior just add up all of the people that arent seniors. You then get a 10 out of 14 (about 71%) chance that the coach will pick somone that is not a senior. I hope this helps :)

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A basketball player has made 6060​% of his foul shots during the season. Assume the shots are independent. ​
motikmotik

Answer:

a) 2.5 shots

b) 59.4 shots

c) 4.87 shots

Step-by-step explanation:

Probability of making the shot = 0.6

Probability of missing the shot = 0.4

a) The expected number of shots until the player misses is given by:

E(X) = \frac{1}{P(X)}=\frac{1}{0.4}  \\E(X) = 2.5\ shots

The expected number of shots until the first miss is 2.5

b) The expected number of shots made in 99 attempts is:

E=99*0.6\\E=59.4\ shots

He is expected to make 59.4 shots

c) Let "p" be the proportion shots that the player make, the standard deviation for n = 99 shots is:

s=\sqrt{n*p*(1-p)}\\ s= 4.87\ shots

The standard deviation is 4.87 shots.

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Step-by-step explanation:

7 0
2 years ago
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[-1/4/5] × [-7/10+0.95] - [-2/1/4]
const2013 [10]

Answer:

-2.5625

Step-by-step explanation:

<u>1)[-1/4/5] × [-7/10+0.95] - [-2/1/4] turn that into improper fractions</u>

2 1/4=9/4

which is 1 4/5(-7/10+0.95)9/4

<u>2) 1 4/5(-7/10+0.95)= 0.3125</u>

which is 0.3125-9/4

<u>3)Make into decimal form</u>

9/4 equals 2.25

which is 0.3125-2.25

which all equals -2.5625

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Answer:

D. 180 degres

Step-by-step explanation:

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