"If 5x+7=-13, then x=-4"
The contrapositive is the inverse and converse of a conditional statement. So, the contrapositive of this statement would be:
"If x does not equal -4, then 5x+7 does not equal -13."
Answer:
use 5th and the 95th percentile of these values.
Step-by-step explanation:
To find the 90% confidence interval for the population standard deviation, randomly sample with replacement from the original sample thousands of times. From each new sample, you compute the sample standard deviation. Using the bootstrap method, we can find the 90% confidence interval for the population standard deviation,from the values of 5th and the 95th percentile of these values.
So we need to use 5th and the 95th percentile of these values.
Answer:
For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.
And on this case 1.713>0.8 so we have a large effect size
This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.
Step-by-step explanation:
Previous concepts
The Effect size is a "quantitative measure of the magnitude of the experimenter effect. "
The Cohen's d effect size is given by the following formula:
Solution to the problem
And for this case we can assume:
the mean for females
the mean for males
represent the deviations for both groups
And if we replace we got:
For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.
And on this case 1.713>0.8 so we have a large effect size
This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.
If L = length of each edge the
L^3 = 231
L = 6.136 in^3 to the nearest thousandth
Answer:
0.2051
Step-by-step explanation:
The probability of follppping a coin 10 tones and getting a tail 6 times can be solved in different ways :
One way is to use the binomial probability relation :
Where :
P(x = x) = nCx * p^x * q^(n-x)
Number of trials, n = 10
p = 1/2 (probability of obtaining a tail per flip)
q = 1- 1/2 = 1/2
x = 6
P(x = 6) = 10C6 * 0.5^6 * 0.5^4
P(x = 6) = 0.205078125
P(x = 6) = 0.2051