<span>There are 10,000 (10*10*10*10) possible sequences. There are 4C3 ways, 4, of having exactly three digits be the same value. The differing digit can be any of the four positions. There are 10P2 ways, 90 (10*9), to choose the digits of the sequence since we have 10 choices for the digit to be repeated, then 9 more options or the differing digit. The product of the combination arrangements and permutation selection, 4*90, shows there are 360 sequences with three of the same digit. Thus the probability is 360/10,000 or 0.036 or 3.6%.</span>
The answer u are looking for is 30
Answer:
1920
Step-by-step explanation:
i think sorry if wrong
Answer: 9 miles
Step-by-step explanation:30 divided by 6 is 5. So the was biking 1 mile every 5 minutes. 45 divided by 5 is 9.
Answer:
The number 0.507 is a statistic parameter and population proportion as it states the proportion since the beginning (historically).
Step-by-step explanation:
If you calculate it and it gives you stats then that makes it a statistic parameter, you have sample of 45 newborns and you multiply with 0.40 (out of hundred) you get 18 boys which just the sample proportion of the set given.
If you multiply it with 0.507, it just gives about 22.81500 which just estimates that for every set of 45 babies you would get about 22 boys average.
