Answer:
30:1
Step-by-step explanation:
90:3
90÷3=30
3÷3=1
=30:1
Answer:
2 half
Step-by-step explanation:
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<span>See this formula in more detail in the Examples section. Formula: To find the percentile rank of a score, x, out of a set of n scores, where x is not included:Example: If Jason graduated 25th out of a class of 150 students, then 125 students were ranked below Jason.</span><span>
Percentiles - Regents Exam Prep Center is were i for my information for you
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Answer:
And rounded up we have that n=8068
Step-by-step explanation:
The margin of error for the proportion interval is given by this:
(a)
We want for this case a 95% of confidence desired, our significance level would be given by 
and 
. And the critical value would be given by:
The margin of error for this case is 
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The estimated proportion for this case is 
. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=8068
20 5/81 in its simplest form is 20 5/81.
20 5/81 originally looks like this ⇒ 1625/81
((20 * 81)+5)/81 = (1620+5)/81 = 1625/81 * this is an improper fraction because the numerator is greater than the denominator. Improper fractions must be converted to proper fractions. It will then become a mixed fraction.
<u> 0020 5/81</u>
81 | 1625
<u>162 </u> * 81 x 2
05
