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Q1) Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in the context of real life situation.
Computers:
Number of computers per householdin a small town
Computers
0
1
2
3
Households
300
280
95
20
Q2) Sociologist surveyed households in aneighboring town. Random variable x represents number of dependent children in the house holds.
x
4
5
6
P(x)
0.05
?
0.23
0.21
0.17
0.11
0.08
What is the approximate estimated bootstrap standard error of the median, What is the approximate bias of the median estimated from bootstrapping - What is the bootstrap t confidence interval for the median
At a large department store, the amount a shopper spent and the shopper's gender (male or female) were recorded. To determine if gender is useful in explaining the amount of money a shopper spends at the store we could
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
By using the normal probability distribution, what is the probability the car will be repaired in 35 minutes or less?
The 95% prediction interval for a new patient with a 2-day cholesterol level of 220 is
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
If one person is selected at random, what is the probability that person is Female?
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
A game involving a pair of dice pays you 3 with probability 17/36, costs you 2 with probability 14/36, and costs you 4 with probability 5/36. What is your probability of losing money in one play of the game?
Suppose it costs $25 per student for the administrators to provide the course materials.
A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.
Using part(a), explain to investor differences between distribution of performance figures for the 2 kinds of stock funds.
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