According to data from the state blood program, 40 percent of all individuals have group a blood. if six individuals give blood, find the mean number of individuals having group a blood.

The mean number of individuals having group a blood is 2.4 individuals.

Explanation:

We can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability. Has a mean of

In this problem, we have that

40 percent of all individuals have group a blood. This means that .

If six individuals give blood, find the mean number of individuals having group a blood.

We work with six individuals, so .

The mean is:

The mean number of individuals having group a blood is 2.4 individuals.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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