Answer:
Yes because She is incorrect 5 x 1 1/2 is 3 1/3
Step-by-step explanation:
Multiply 5 and 1 1/2 to get 3 1/3
Y=mx+b
y=2x+b
then substitute x and y
3=2(3) + b
3= 6 + b
b=-3
y=2x-3
•in fraction form the answer is 2/15
•in percentage form the answer is 13.33333333...%
the way to figure this out is to add all the numbers up and divide it by the number of red marbles :)
Answer:
120 is the y intercept in the formula y=mx+b
hope this helped!!
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
