Answer: This is what I get.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah is 2x + 4
Answer:
the answer would be D
Step-by-step explanation:
first you add all your marbles up and that is you bottom half of the equation and then you put the amount of white marbles on top.
Mean because all of the data points are
fairly close and there aren't any outliers
(extreme values)
Answer:
the probability is 0.0750
Step-by-step explanation:
The computation of the probability is shown below;
The mean of x is
= 1.5 ÷ √79
= 0.1688
Now the probability is
= P(Z < -0.3 ÷ 0.1688) + P(\bar{x} > 0.3 ÷ 0.1688)
= P(Z < -1.78) + P(Z > 1.78)
= P(Z < -1.78) + 1 - P(Z < 1.78
= 0.0375 + 1 - 0.9625
= 0.0750
hence, the probability is 0.0750
