If the rate at which they are giving the DVDs is the same then it is 4/65 or 16.25% or 0.1625.
Now just multiply 455 by the rate (4/65 or 16.25% or 0.1625) to find how many DVDs were given.
455 × (4/65) = 28
28 DVDs were given away
hope it helps :)
Answer: 15
Step-by-step explanation:
Given : Level of confidence = 0.90
Significance level :
Critical value :
Margin of error :
Standard deviation:
The formula to find the sample size :
Hence, the minimum sample size needed= 15.
H) 6.8
A).77
N)9.93
I)1.25
V)16.6
Y)2.06
D)80.3
S).019
B)3/2000 or 1.5E-03
W).986
G)1.307
P).008
The one next to R)7.98
R)6.229
E).059
Convert 3 hours and 30 minutes all into minutes so that would be 210 minutes. You then have 169 miles / 210 minutes. Get the denominator to 1 minutes by dividing by 210 to the top and bottom and you'll get .080476 miles / 1 minute which is the answer.
The mistake that Karen made was that in order to get the 8 to switch sides, it should have been subtracted rather than added. This is because it is positive on the left side and therefore must be negative when we switch it to the right side. A proper version of this problem would be below.
y + 8 = 15
y = 15 - 8
y = 7