Answer:
median is 55
Step-by-step explanation:
256.5/18= 14.25
(14.25x2)+(18x2)= 64.5m
Answer:
Degree 4
Step-by-step explanation:
Expression:
3x^3 + 3x^2y^2 - y^2
- 3x^3 - degree 3
- 3x^2y^2 - degree 2+2 = 4
- y^2 - degree 2
So the expression has degree 4 as per the highest degree of the terms
We went from -12 degrees to 27 degrees.
27 - (-12) = 27 + 12 = 39
Answer:
The least number of tennis balls needed for the sample is 1849.
Step-by-step explanation:
The (1 - <em>α</em>) % confidence interval for population proportion is:
The margin of error for this interval is:
Assume that the proportion of all defective tennis balls is <em>p</em> = 0.50.
The information provided is:
MOE = 0.03
Confidence level = 99%
<em>α</em> = 1%
Compute the critical value of <em>z</em> for <em>α</em> = 1% as follows:
*Use a <em>z</em>-table.
Compute the sample size required as follows:
Thus, the least number of tennis balls needed for the sample is 1849.