Abaseball player’s batting average is 250. find each of the following probabilities that he will get hits. a. exactly 2 hits in 4 times at bat. b. at least one hit in 4 times at bat.

P(x = 2) = 0.21

P(x ≥ 1) = 0.264

Step-by-step explanation:

We would apply the binomial distribution formula which is expressed as

P(x = r) = nCr × q^(n - r) × p^r

Where

p = probability of success.

q = probability of failure = 1 - p

n = number of samples

From the information given,

p = 0.25

q = 1 - 0.25 = 0.75

n = 4

a)we want to determine the probability that he gets exactly 2 hits in 4 times at bat. It is expressed as P(x = 2)

P(x = 2) = 4C2 × 0.75^(4 - 2) × 0.25^2 = 0.21

b) we want to determine the probability that he gets At least one hit in 4 times at bat. It is expressed as P(x ≥ 1) = 1 - P(x ≤ 1)

1 - P(x ≤ 1) = P(x = 0) + P(x = 1)

P(x = 0) = 4C0 × 0.75^(4 - 0) × 0.25^0 = 0. 316

P(x = 1) = 4C1 × 0.75^(4 - 1) × 0.25^1 = 0.42

P(x ≤ 1) = 0. 316 + 0.42 = 0.736

P(x ≥ 1) = 1 - 0.736 = 0.264

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

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step-by-step explanation: