Step-by-step explanation:
h(-1) -g(-1)=2(-1)^2-1-1+4+5
=2-2+9
=9
Jill is one of the 18 students out of 20 students in the club that will not be picked.
18/20 = 0.9
The probability that Jill will not be picked is a 0.9 chance (90%).<span />
Answer:
Step-by-step explanation:
sample size = n = 60
Sample mean = x bar = 5.25
Sample sd = s = 0.55
Std error of sample = s/sqrt n = 0.071

(One tailed test)
Mean difference = 5.25-5.4 = -0.15
Test statistic t = Mean diff/Se = -2.11
df=59
(since population std dev is not known t test is used)
p value =0.01955
Since p <alpha =0.05 we reject null hypothesis.
The results suggest about the sample group that the sample is from a population with a mean less than 5.4
Answer:
0.20
Step-by-step explanation:
4.75 divide by 25 = 0.19
then 0.19 rounds to 0.20
-2/3 :)))))))))))))))))))))))))