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vagabundo [1.1K]
2 years ago
7

People are randomly chosen from a group of 7 boys and 5 girls. Determine which scenario is more likely to happen.

Mathematics
1 answer:
andre [41]2 years ago
6 0

Answer:

A

Step-by-step explanation

Well the boys can be chosen again all in a row but the girls cdan't therfore the answer is A

Hope This Was Helpful!

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By simplifying both sides of the equation then isolating the variable
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Jay's father is twice as old as jay. In 20 years Jay will be two-thirds as old as his father. How old is each now?
EastWind [94]
Well take this for an example

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An online store sells specialty bags. They charge $8 for shipping and $21 per bag ordered.
stellarik [79]

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8 0
3 years ago
The probability that a lab specimen contains high levels of contamination is 0.12. A group of 4 independent samples are checked.
sergiy2304 [10]

Answer:

0.5996 is the probability that none contain high levels of contamination.

Step-by-step explanation:

We are given the following information:

We treat  lab specimen containing high levels of contamination as a success.

P( lab specimen containing high levels of contamination) = 0.12

Then the number of lab specimens follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 4

We have to find the probability that none of the lab specimen consist of high level of contamination.

We have to evaluate:

P(x = 0)\\= \binom{4}{0}(0.12)^0(1-0.12)^{(4-0)}\\= 0.5996

0.5996 is the probability that none contain high levels of contamination.

5 0
4 years ago
Plzz show workings while giving the answer​
sukhopar [10]

Answer:

\huge\boxed{\sf 4\ minutes\ 1.5\ seconds}

Step-by-step explanation:

3 minutes 59.1 seconds = (3*60) + 59.1 seconds = 180 + 59.1 seconds

=> 239.1 seconds

\rule[225]{225}{2}

4 minutes 3.8 seconds = (4*60) + 3.8 seconds = 240 + 3.8 seconds

=> 243.8 seconds

\rule[225]{225}{2}

4 minutes 1.6 seconds = (4*60) + 1.6 seconds = 240 + 1.6 seconds

=> 241.6 seconds

\rule[225]{225}{2}

Mean = Sum of data / No. of Data

Mean = 239.1 + 243.8 + 241.6 / 3

Mean = 724.5 / 3

Mean = 241.5 seconds

<u>In Minutes and Seconds:</u>

= 241.5 / 60 = 4.025 minutes

= 4 minutes + 0.025 minutes

= 4 minutes + (0.025 * 60) seconds

= 4 minutes 1.5 seconds

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

8 0
3 years ago
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