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zzz [600]
2 years ago
12

A bus can hold 108 passegers. If there are 12 rows of seats on the bus, how many seats are in each row?

Mathematics
2 answers:
bearhunter [10]2 years ago
8 0
The answer is 9 seats in each row


for 12 rows *9 seats in each row = 108 seats in all or passengers maximum
zmey [24]2 years ago
3 0
You have to divide
108/12
=9
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Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 680 trials

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So, it means X <em>~ </em>Binom(n=680, p=0.55)

<em><u>Now, we have to find the mean and standard deviation of the given binomial distribution.</u></em>

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       So, E(X) = 680 \times 0.55 = 374

  • Standard deviation of Binomial Distribution is given by;

                   S.D.(X) = \sqrt{n \times p \times (1-p)}

                               = \sqrt{680 \times 0.55 \times (1-0.55)}

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Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

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