Important pont ! 80% = 0.8 when you change it in to decimal for calculation.
Total number of home fans = Total number of fans * Ratio in decimal of home fans
Total number of home fans = 64000* 0.8
The Answer is 51200 (D)
Answer:
5/6 divided by 1/5
Step-by-step explanation:
(5/6)/(1/5)= 4.16666666667
Yes, this is correct. When you assigned the variable x the same and equivalent to variable p. Then, their values are the same such as let P: x=4, then 4 is the value for x. Similar with q, when we assign q the same with y value, then the value of q is -2, then y is also equivalent to -2.
Answer: N(20, 4) distribution.
Step-by-step explanation:
Normal approximation to Binomial :
The normal approximation is used for binomial distribution having parameters n and p as
if x is the random variable then x has .
Given : As part of a promotion for a new type of cracker, free trial samples are offered to shoppers in a local supermarket.
The probability that a shopper will buy a packet of crackers after tasting the free sample : p=0.20.
Different shoppers can be regarded as independent trials.
if X is the number among the next 100 shoppers who buy a packet of crackers after tasting a free sample.
Then, Mean and standard deviation for x will be :
i.e. X has approximately an N(20, 4) distribution.
Answer:
25
Step-by-step explanation:
It takes 1/5 of a gallon of water to fill up a package of water balloon
There are 5 gallons of water in total
Therefore the number of packs of balloons that can be filled can be calculated as follows
= 5 ÷ 1/5
= 5 × 5/1
= 25
Hence 25 packs of the balloon can be filled