Answer:
Step-by-step explanation:
The -2 in the parentheses moves the graph horizontally 2 units to the right.
The 3 then stretches this graph vertically by a factor 3.
Answer:
X = [-5 -1 2 1] - [-1 -2 4 8] = [-4 1 -2 -7]
Answer:
the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096
Step-by-step explanation:
From the five randomly selected students ; 160, 175, 163, 149, 153
mean average of the students = 160+175+163+149+153/5
= mean = x-bar = 800/5
mean x-bar = 160
from probability distribution, P(x-bar > 160) = P[ x-bar - miu / SD > 160 -150.8 /3.94]
P( Z>2.34) = from normal Z-distribution table
= 0.0096419
= 0.0096
hence the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096
where SD = standard deviation = 3.94 and Miu = 150.8
This example is the Symmetric Property.
I hope this helps you!
xo, Leafling
