Answer:
680
Step-by-step explanation:
Number of red beans = 30
Number of Blue beans = 30
Number of green beans = 30
How many color combinations of 15 beans have at least 6 green beans?
Since at least 6 of the beans must be green,
Then (15 - 6) = 9
Then, the remaining 9 could be either red, blue or green.
Therefore, C(9 + (9 - 1), 3)
C(17, 3) = 17C3
nCr = n! ÷ (n-r)! r!
17C3 = 17! ÷ (17 - 3)! 3!
17C3 = 17! ÷ 14!3!
17C3 = (17 * 16 * 15) / (3 * 2)
17C3 = 4080 / 6
17C3 = 680 ways
The estimated standard error for the sample is 6
Given,
Sample size, n = 36
Sample variance, 
= 1296
Standard deviation, s = √1296
= 36
Standard error, SE = 
= 
= 
= 6
Concept
- Sample size is the number of participants or observations included in a study. It is denoted by ‘n’
- Sample variance is a measure of the degree to which the numbers in a list are spread out. It is denoted by ''
- Standard deviation is a measure of how dispersed the data is in relation to the mean. It is denoted by ‘s’
Learn more about standard deviation here:brainly.com/question/13905583
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B, a rectangle is a 2D shape, a rectangular prism is a 3D shape with rectangular faces
Answer:
£46
Step-by-step explanation:
40 increased by 15 percent is because 15 percent of 40 is 6
adding this increase to it makes it 46 pounds
A mathematical equation is an expression containing at least one variable and an equals sign with a mathematical expression on each side of it.
