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What are the 2 conditions that determine a probability distribution?
The value of the distribution for any value of the random variable must be in the range [0, 1]. The sum (or integral) of the probability distribution function over all possible values of the random variable must be 1.
What is the probability that a standard normal variable will be between the values of -2 and 1?
0.636 approx.
Is family size a continuous variable?
No, this is a discrete variable since it can assume only whole number values: 0, 1, 2, 3, ... . A continuous variable would be one such as volume of water in a swimming pool which could be measured in real number units of volume.
What would -2 standard deviation below the mean be?
It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.
What is the sample space when 2 coins are tossed?
Assuming the variable of interest is the face on top: H (= heads) or T (= tails), then they are the four possible outcomes: HH, HT, TH and TT.
What data can have only 2 values?
A binary variable.
What are the 2 conditions that determine a probability distribution?
The value of the distribution for any value of the random variable must be in the range [0, 1]. The sum (or integral) of the probability distribution function over all possible values of the random variable must be 1.
What is the probability that a standard normal variable will be between the values of -2 and 1?
0.636 approx.
How many possible values are there for the spin quantum number?
The spin quantum number can have two possible values: +1/2 or -1/2.
How do you complete a table of values with the equation -2y 6x-2?
Given a value for the variable x, you find (calculate) the corresponding value of y. These (x, y) pairs are part of the table. You cannot complete the table because there are infinitely many possible values of x.
A sentence with the word dependent variable?
"If y=2x, then x is the independent variable and y is the dependent variable." Also, " If x=y/2 then y is the independent variable and x is the dependent variable". Also, "The dependent variable is the one variable which is found by giving values to all the independent variables"
Are there any values of the variable A for which the expressions 2 plus A and 2A have the same value?
2. 2 plus 2 equals 4 and 2(2)= 4
Is a discrete variable normally described as a word?
No.A discrete variable is a variable that can not assume all possible values within a given range.For example, if I were to conduct a survey on the number of children people had, then my answers would be numbers such as 0, 1, 2 and so forth (i.e. they would be whole numbers). This particular variable could not have a value in between these (a non integer value), such as 1.345, as this makes no sense in this context. This makes the variable discrete.
When a number is a multiple of 2 what are the possible values for the ones digit?
The values are : All even numbers and zero.
How many different values of l are possible in the third principle level?
Three different values of l are possible in the third principle or quantum level. They are: l=0, 1, and 2.
How can you calculate total number of rows in the truth table?
The total number of rows in a truth table can be calculated using the formula 2^n, where n is the number of variables. Each variable can have two possible truth values (True or False), so each row represents a unique combination of truth values for the variables.
Is the number of popcorn servings sold per day an example of a continuous variable?
The number of popcorn servings sold per day is actually an exemple of a discrete variable. A discrete variable can only take on certain values within its variable range (1, 2, 3, etc). As such, the number of servings can only take on those values, that are whole numbers, without decimals. You cannot say that you have 1.5 desks in your room, for example. You have 1, 2 or 3 desks. On the contrary, a continuous variable is one that, within its variable range, can take any value. Time would be a good example. Between 2 o'clock and 3 o'clock, there are other values. A student can say it took 2 hours and 10 minutes to complete his exam, for example.
