Answer:
The mean of X is 2
Step-by-step explanation:
Given the data in the question;
set of 10 cards consist of 5 red card and 5 blacks
cards are chosen, replaced and shuffled four times;
number of independent trials n = 4
now, since its is replaced, the probability of getting a red card in each trial will be;
p = 5/10 = 0.5
let X rep the number of red cards observed in the four trials.
the random variable follows binomial distribution where
n = 4 and p = 0.5
so
E(X) = ∑xP( X = x )
E(X) = np
we substitute
E(X) = 4 × 0.5
E(X) = 2
Therefore, The mean of X is 2
It is ABCD ~ GFHE because you have to list corresponding points when stating similarity
Answer:
she worked 7.5 hours of over time
Step-by-step explanation:
22x8=176
341-176=165
165/22=7.5
<span>a∥e , m∥n , and m∠2 = 112°.
<6 = <2 = 112
answer
112</span>
Let's check every choices until one choices satisfy the graph :
Choice A is just a translation of -5 units or 5 units to the left
If we look at the graph between A"B"C" and A'B'C'
A"B"C" is 5 units to the left of A'B'C'
Therefore Choice A is True!
The correct answer is A.
No need to check for the other choices since you got a true statement at the first Choice.
IF in case that A is False, then you need to check the other choices.
