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2 answers:
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The least number of boxes and bags needed are 3 and 2 respectively.
<u><em>Explanation</em></u>
Suppose, the number of boxes is and the number of bags is
Given that, pencils come in 8 in a box and erasers come 12 in a bag.
So, the total number of pencils in number of boxes
and the total number of erasers in
number of bags
As there are total 24 students and each student needs one pencil and one eraser to take a test, so...
and
So, the least number of boxes and bags needed are 3 and 2 respectively.
Answer:
C) I & III
Step-by-step explanation:
Given:
Sample size, n = 18
Sample proportion = 25% = 0.25
Here, a random sample of 18 adults were chosen from the 1500 adults in town. This shows that the random condition was satisfied because the sample was drawn randomly from the general population of adults in the town.
For the normal condition to be satisfied, np should be greater than 10, ie np > 10.
In this case, np = 18 * 0.25 = 4.5
Since np is less than 10, the normal condition was not satisfied.
For the 10% condition to be satisfied, sample size should not be more than 10% of the general population.
Here, the sample size is 18 and the population is 1500. Therefore,
Since the sample size is 1.2% of the population which is less than 10%, the 10% condition was satisfied.
The correct option is C, because only I & III were satisfied.