To evaluate the probability that a randomly selected day will be between 28 and 34 minutes we proceed as follows:
P(28<x<34)
First we evaluate the z-score for the above values:
z=(x-σ)/μ
μ=26.7
σ=5.1
when:
x=28
z=(28-26.7)/5.1
z=0.26
P(z<0.26)=0.6026
when x=34
z=(34-26.7)/5.1
z=1.43
P(z<1.43)=0.9236
hence:
P(28<x<34)=0.9236-0.6026=0.321~32.1%
Answer:
#3
Step-by-step explanation:
(x,y) (x,y,+1)
Answer:
the right is the answer :>
Step-by-step explanation:
Answer:
d.
Step-by-step explanation:
A, B, and C ask questions that will be answered with different sets of data.
<u>example a:</u>
purple- 11 students
blue- 5 students
orange- 7 students
<u>example b:</u>
math- 27
history- 30
art- 25
<u>example c:</u>
history books: 12 lbs
math books: 15 lbs
science books: 10 lbs.
If it were to ask how many windows are there in each of the classrooms then it would be statistical.
you get the gist lol.
Answer:
144 cookies
Step-by-step explanation:
Since the 3 dozen cookies she baked was 1/4th the amount in total, all you have to do to find the total amount is multiply the fraction of the cookies 3 dozen (36) by 4.
36×4 = 144 cookies in total
