A) the z score for 95% is 1.96
Multiply by the deviation:
1.96 x 0.005 = 0.0098
Now add and then subtract that from the mean:
4.035 - 0.0098 = 4.0252
4.035 + 0.0098 = 4.0448
The interval is (4.0252, 4.0448)
B) 4.035 +/- 1.96 x sqrt( 0.005/sqrt(25))
= 4.035 +/-0.00196
Answer: ( 4.033, 4.037)
C) the conclusion is that both 4.020 and 4.055 are out of the range.
4.020 is below the lowest range and 5.055 is higher than highest range.
The answer would be D. Lol I dont think this is mathematics though
Answer:
Discriminant = -24
No real roots.
Step-by-step explanation:
x^2 + 2x + 7 = 0
The discriminant = b^2 - 4ac
= 2^2 - 4*1*7
= -24
So there are no real roots.
Answer:
he got 8 books free and now has 24 books total
Step-by-step explanation:
16/2=8
that would be the answer for how many books he got for free because if there is a box of 16 books and for every2 books you get one free then you would divide 16 and 2 and get 8 then
16+8=24
add the number of books he got for free with the original 16 books he already had and get 24 total books.
Answer:
50 seconds
Step-by-step explanation:
If you look at some of her videos, you can see that she runs about a 50 second 400 meter dash.
