Answer:
To answer this question you need to x and y
Step-by-step explanation:
Answer:
your answer is b
Step-by-step explanation:
Answer:
- The probability that the locker code begins with a prime number is 40%.
- The probability that the last digit of the locker code is an odd number is 40%
Step-by-step explanation:
- Prime numbers are the numbers that only divide with 1 or itself. So in this case it is 5 and 7.
The possible combinations are
1*4*3 (with 5) + 1*4*3(with 7) = 24
Total combinations are 5*4*3=60
(24/60)*100 = 40 %
2. Odd numbers are those which don't divide with 2. So in this case it is 6 and 8.
The possible combinations are
1*4*3 (with 6) + 1*4*3(with 8) = 24
Total combinations are 5*4*3=60
(24/60)*100 = 40 %
Answer:
A.The confidence interval based on the sample of 64 data values will be more precise.
Step-by-step explanation:
Given that we take two different random samples from the same population of test scores.
The population mean and standard deviation are unknown.
The first sample has 25 data values. The second sample has 64 data values.
When sample sizes grow the confidence interval will be narrower this is due to the reason that margin of error depends on standard error which in turn is inversely proportional to square root of sample size.
So we find that A.The confidence interval based on the sample of 64 data values will be more precise.
Answer:
Yes
Step-by-step explanation:
For GP, Tn = ar^(n-1), where a = first term and r = common ratio, again,
r = Tn/Tn-1
All we will do is to verify
if T2/T1 = T3/T2
192/256 = 144/192
0.75 = 0.75
Conclusion:
As T2/T1 = T3/T2 which is 0.75 = 0.75, therefore, It is a Geometric Progression (GP)
