An example of a continuous probability distribution that can be shown in terms of mean and standard deviation.
What is normal distribution.
100
On of the types of inferences that involves estimating the value of a population parameter.
What is estimation.
100
What percentage of the data lies within the area one standard deviation away from the mean?
What is 68%.
100
Describe a normal probability distribution.
What is distributions of continuous random variables. They are symmetrical about the mean and bell-shaped. Most of the data fall within 3 standard deviations of the mean. The mean and the median are the same.
100
On which day of the week are heart attacks most likely to occur?
What is Monday.
200
This gives the number of standard deviations between the original measurement x and the mean of the x distribution.
What is z-score or z-value.
200
This is a numerical descriptive measure of a population.
What is parameter.
200
What theorem states that when n is sufficiently large (n>30), the x-bar distribution is approximately normal even if the original x distribution is not normal.
What is central limit theorem.
200
Given that x is a normal variable with a mean of 47 and a standard deviation of 6.2, find P(x less than or equal to 120).
What is 0.9821
200
True or False. When a hippo is mad, its sweat turns brown.
What is false. Their sweat actually turns red when they are mad.
300
A numerical descriptive measure of a sample.
What is statistic.
300
This is a plot that is provided through statistical software on a computer or graphing calculator.
What is normal quantile plot.
300
Which table in the appendix gives areas under a standard normal distribution that are to the left of a specified value of z?
What is Table 3.
300
What characteristic of a normal quantile plot indicates that the data follow a distribution that is approximately normal?
What is the points lie in close to a straight line.
300
True or False. If you lift a kangaroo's tail of the ground, it cannot hop.
What is true.
400
The standard deviation of a sampling distribution.
What is standard error.
400
A type of inferences in which we make predictions or forecasts about the value of a statistical variable.
What is regression.
400
This gives the number of standard deviations between the original measurement x and the mean of the x distribution.
What is z-value or z-score.
400
Given that x is a normal variable with a mean of 47 and a standard deviation of 6.2, find P(x is greater than or equal to 80).
What is 0.3156.
400
What is a flock of crows known as?
What is a murder.
500
A probability distribution of a sample statistic based on all possible simple random samples of the same size from the same population.
What is sampling distribution.
500
The ______ of the original distribution is always zero in standard units.
What is mean.
500
Name three tools for assessing the normality of a data distribution.
What is making a histogram, no more than one outlier, skewness is between -1 and 1, and the use of a normal quantile plot.
500
Given that x is a normal variable with a mean of 47 and a standard deviation of 6.2, find P(50 is less than or equal to x which is less than or equal to 60).
What is 0.2977
500
On which island is it illegal to eat mince pies on Christmas Day?