The fourth grade wants to observe Martin Luther king day. They can show a video about his life or have a guest speaker. They can
use confidence room for their program on Wednesday, Thursday,or Friday. Find the number of possible combinations by making a tree diagram
1 answer:
You might be interested in
Answer:
(221.39, 300.61) and (255.2223, 266.7777)
Step-by-step explanation:
Given that X, the lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days
Middle 98% would lie on either side of the mean with probability ±2.33 in the std normal distribution on either side of 0
Corresponding we have x scores as
Between and
i.e. in the interval = (221.39, 300.61)
If sample size = 47, then std error of sample would be
So 98% of pregnancies would lie between
and
= (255.2223, 266.7777)
Answer:
Step-by-step explanation:
Step 1: Expand by distributing sum groups.
Step 2: Expand by distributing terms.
Step 3: Expand by distributing terms.
Step 4: Collect like terms.
Step 5: Simplify.
Answer:
Step-by-step explanation:
