<u>Answer:</u>
P (red) = 1/2
<u>Step-by-step explanation:</u>
It is given that a card is drawn from a well-shuffled deck of 52 cards and we are to find the probability of getting a red card.
We know that there are total 26 red cards in a deck (13 hearts and 13 diamonds).
Therefore, the probability of getting a red card P (red) = = 1/2
Answer:
1
Step-by-step explanation:
Given parameters:
Length of ribbon = yards
Unknown:
Maximum number of yards that can be cut = ?
Solution:
Maximum number of length that can be cut;
=
Maximum number of length =
Maximum number of length = x
= 1
The maximum number of yards that can be cut is 1
Answer:
a) The 95% confidence interval for the mean waste recycled per person per day for the population of Maine is between 1.19 and 1.61 pounds.
b)
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 7 - 1 = 6
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of . So we have T = 2.4469, and the answer to question b is
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 1.4 - 0.21 = 1.19 pounds.
The upper end of the interval is the sample mean added to M. So it is 1.4 + 0.21 = 1.61 pounds.
The 95% confidence interval for the mean waste recycled per person per day for the population of Maine is between 1.19 and 1.61 pounds.