write the 3- digit number That answer the riddle. I have the same ones as Hundreds digit digit. the value of my tens digit is 50
1 answer:
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Answer:
43,680 ways.
Step-by-step explanation:
We have been given that an experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. We are asked to find the number of groups of 4 participants that can be chosen, assuming that the order in which the participants are chosen is irrelevant.
We will use permutations formula to solve our given problem.
For our given problem and
.
Therefore, 4 participants can be chosen in 43,680 different ways.
Answer:
Step-by-step explanation:
Given : sample size : n= 51
sample standard deviation : s= 0.46
Significance level :
Using chi-square distribution, the critical values will be :
Confidence interval for population standard deviation () :
Substitute all the values , we get
Hence, the 95% two-sided confidence interval for σ :