Can someone help me with please
2 answers:
8. 4:12
9. 213:193
Explanation:
100 (# of 5th grade boys) - 7 = 93 (# of 6th grade boys)
100 + 93 = 193 (total # of boys)
93 (# of 6th grade boys) + 10 = 103 (# of 6th grade girls)
110 + 103 = 213 (total # of girls)
213:193
10. a. 1:11 -- b. c. no because 11 is greater than 1, so there are more students than teachers. (then again the total amount of teachers at the school wasn't provided so i dunno)
11. a. 1: -- no, it's not the correct ratio because when cooking rice you should always have more water than rice, since the rice absorbs a lot of water.
12. a. 3:5 -- b. yes because the amount of wins + losses = 5 so there was a total of 5 games
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Answer:
1) Randomization condition: We assume that we are selecting random samples so this condition is satisfied
2) 10% condition: We assume that the random sample selected is less than 10% of the population size
3) Success/ Failure condition:
For this case we need to satisfy this:
So since the condition 1 and 2 are satisfied the correct option for this case would be:
a)np and nq must be respectively at least equal to 10
Step-by-step explanation:
Assuming the following options:
a)np and nq must be respectively at least equal to 10
b) as n increases, the distribution of sample proportions becomes less Normal
c) np and nq must be respectively less than 10
d) np plus nq must be at least 10.
For this case we need 3 basic conditions:
1) Randomization condition: We assume that we are selecting random samples so this condition is satisfied
2) 10% condition: We assume that the random sample selected is less than 10% of the population size
3) Success/ Failure condition:
For this case we need to satisfy this:
So since the condition 1 and 2 are satisfied the correct option for this case would be:
a)np and nq must be respectively at least equal to 10