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Recent questions in Statistics and Probability
High school statisticsAnswered question
Kobe Dixon 2023-04-01Read carefully and choose only one option
A statistic is an unbiased estimator of a parameter when (a) the statistic is calculated from a random sample. (b) in a single sample, the value of the statistic is equal to the value of the parameter. (c) in many samples, the values of the statistic are very close to the value of the parameter. (d) in many samples, the values of the statistic are centered at the value of the parameter. (e) in many samples, the distribution of the statistic has a shape that is approximately Normal
Read carefully and choose only one option
A statistic is an unbiased estimator of a parameter when (a) the statistic is calculated from a random sample. (b) in a single sample, the value of the statistic is equal to the value of the parameter. (c) in many samples, the values of the statistic are very close to the value of the parameter. (d) in many samples, the values of the statistic are centered at the value of the parameter. (e) in many samples, the distribution of the statistic has a shape that is approximately Normal
High school statisticsAnswered question
Leon Bishop 2023-04-01Construct all random samples consisting three observations from the given data. Arrange the observations in ascending order without replacement and repetition.
86 89 92 95 98.
86 89 92 95 98.
High school probabilityAnswered question
ystyrixkzd 2023-03-31Write formula for the sequence of -4, 0, 8, 20, 36, 56, 80, where the order of f(x) is 0, 1, 2, 3, 4, 5, 6 respectively
High school statisticsAnswered question
juanikitoexgv5y 2023-03-31Find the mean of the following data: 12,10,15,10,16,12,10,15,15,13.
High school probabilityAnswered question
ballar9bod 2023-03-31Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey). If 8 adult smartphone users are randomly selected, find the probability that exactly 6 of them use their smartphones in meetings or classes?
High school probabilityAnswered question
Aydan Hardy 2023-03-31A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment.n=20,
p=0.7,
x=19
P(19)=
p=0.7,
x=19
P(19)=
High school probabilityAnswered question
Kelton Rogers 2023-03-30In binomial probability distribution, the dependents of standard deviations must includes.
a) all of above.
b) probability of q.
c) probability of p.
d) trials.
a) all of above.
b) probability of q.
c) probability of p.
d) trials.
High school probabilityAnswered question
Jordan Graves 2023-03-30The probability that a man will be alive in 25 years is 3/5, and the probability that his wifewill be alive in 25 years is 2/3
Determine the probability that both will be alive
Determine the probability that both will be alive
High school probabilityAnswered question
se2ng0uhp 2023-03-29How many different ways can you make change for a quarter??
(Different arrangements of the same coins are not counted separately.)
(Different arrangements of the same coins are not counted separately.)
High school probabilityAnswered question
Maui1opj 2023-03-23One hundred people line up to board an airplane that can accommodate 100 passengers. Each has a boarding pass with assigned seat. However, the first passenger to board has misplaced his boarding pass and is assigned a seat at random. After that, each person takes the assigned seat. What is the probability that the last person to board gets his assigned seat unoccupied?
A) 1
B) 0.33
C) 0.6
D) 0.5
A) 1
B) 0.33
C) 0.6
D) 0.5
High school statisticsAnswered question
hangobw6h 2023-03-23The equation has a positive slope and a negativey-intercept.
1) y=−2x−3
2) y=2−3x
3) y=2+3x
4) y=−2+3x
1) y=−2x−3
2) y=2−3x
3) y=2+3x
4) y=−2+3x
High school statisticsAnswered question
chatterbsau3e 2023-03-22What term refers to the standard deviation of the sampling distribution?
High school statisticsAnswered question
Chelsea Mcknight 2023-03-21Fill in the blanks to make the statement true: .
Descriptive StatisticsAnswered question
Arturo Callahan 2023-03-21What is the range of the function ?
High school probabilityAnswered question
v1kibc2 2023-03-141 octopus has 8 legs. How many legs does 3 octopuses have?
A) 16
B 24
C) 32
D) 14
A) 16
B 24
C) 32
D) 14
High school probabilityAnswered question
Urijah Lawrence 2023-03-13From a pack of 52 cards, two cards are drawn in succession one by one without replacement. The probability that both are aces is...
High school probabilityAnswered question
Eliza Berry 2023-03-13 A pack of cards contains aces, kings, queens and jacks. Two cards are drawn at random. The probability that at least one of these is an ace is A B C D
Descriptive StatisticsAnswered question
Claudia Marshall 2023-03-11The domain and range of is
A)
B)
C)
D)
A)
B)
C)
D)
High school probabilityAnswered question
Immadvapsupvkd 2023-03-09You spin a spinner that has 8 equal-sized sections numbered 1 to 8. Find the theoretical probability of landing on the given section(s) of the spinner. (i) section 1 (ii) odd-numbered section (iii) a section whose number is a power of 2. [4 MARKS]
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