631 divided by 4 is 15.75 rounded to 16. To check you multiply 4 by 15.75 to get 631. Please brainly if ti helps! :D
Answer:
Step-by-step explanation:
First do 9 times 9 times 9
Answer:
.I didn't understand it either sorry
First of all, you must change 40% into a decimal by multiplying by 100⇒.40
Then you divide 55 by .40
55÷.40=137.5
Therefore, 55 is 40% of 137.5
According to the Central Limit Theorem the sum or average of at least 30 independent random variables with the same distribution is approximately normal. Therefore the answer is 'at least 30 measurements.'
