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Annette [7]
3 years ago
13

1. Determine whether or not each of the following is a Binomial random variable. If it is not a Binomial random variable, provid

e a short explanation. a) You roll a die 25 times. Let X be the number of times that you roll "3". b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season. c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.
Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

a) You roll a die 25 times. Let X be the number of times that you roll "3".

* Is a Binomial

b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season.

* Not a Binomial because probability of success is not constant

c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.

* Is a Binomial

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Sal Boxer decided to divide a gift of $5000 into two different accounts. He placed $1000 in an account that earns an annual simp
mash [69]

Answer:

THE TOTAL INTEREST EARNED = $ 385

Step-by-step explanation:

Interest earned by sal from first account can be calculated as follows :

Principal value (P)  =  $1000 .

interest rate (R)  =  7.5 % .

Time period (T) =  1  year .

\textbf{S . I} =\frac{\texbf{P * R * T}}{\textbf{100}}

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         = $ 75 .

SIMILARLY , we can find the intrest earned by rest amount.

Principal value (P) = $5000 - $ 1000 = $ 4000 .

Interest rate (R) = 7.75 % .

Time period (T) = 1 year .

S . I =  \frac{4000 * 7.75 * 1}{100}

      = $ 310 .

THE TOTAL INTEREST EARNED = $ 75 + $ 310

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4 0
3 years ago
I NEED HELP! ITS FOR A GRADE
cricket20 [7]
In short the answer is 5/25 or 1/5 either works.

4 0
2 years ago
Need help with this. The question is on this image, thanks!
Aleks [24]

Answer: y = 5/8x + 0.5

Step-by-step explanation:

5/8 is the slope if you could 5 up and 8 to the side

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y = 5/8x + 0.5

<!> Brainliest is appreciated! <!>

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