Answer:
c
Step-by-step explanation:
Answer:
Option C
Step-by-step explanation:
Given that for a random sample of 20 houses selected from a city showed that the mean size of these houses is 1880 square feet with a standard deviation of 320 square feet.
X, the sizes of houses is Normal
Hence sample mean will be normal with
Mean = 1880
and std dev = 
For 90% confidence interval critical value for t with degree of freedom 19 is
1.328
Confidence interval upper bound
= mean + margin of error
= 
Option C is right
Answer:
x = 54
Step-by-step explanation:
The two angles are across a vertex and are therefore equal. Set the two angles equal and solve for x:
2x+2 = 3x - 52
2 = x - 52
54 = x
Answer:huh
Step-by-step explanation:
Find the answer for 15:
462,371 * 10 = 4,623,710
(millions place)
Find the answer for 16:
How many hundreds to make a thousand?
10! because 371 * 10 = 3,710
(10 times)