Using sampling concepts, it is found that the correct option regarding if this is a random sample is given by:
Yes, because the slips of paper were all the same shape and size.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
In this problem, since the slips have the same shape and size, each name has an equal probability of being chosen, hence it is a random sample and the correct option is:
Yes, because the slips of paper were all the same shape and size.
More can be learned about sampling concepts at brainly.com/question/25122507
B) The probability that both marbles are purple is 2.22%.
C) The probability that you pick at least one purple marble is 98%.
<h3><u>Probability</u></h3>
The question is incomplete, since the number of marbles of each color in the bag is missing: 3 blue, 5 green, and 2 purple marbles.
Now, to answer the questions, the following calculations must be done:
- B) 2/10 x 1/9 = X
- 0.2 x 0.11111 = X
- 0.022222 = X
- X x 100 = 2.22
- C) 100 - (2/9x9) = X
- 100 - 2 = X
- 98 = X
Learn more about probability in brainly.com/question/27656131
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Since, you're moving up in exponents, you will move right the number of decimal spaces equivalent to the power of the exponent. Hence, move the decimal point five spaces to the right. There, you now have your answer. :)
Answer:
k = 9/5
Step-by-step explanation:
In y=k/x^2 replace x with (-3) and y with (1/5); then calculate k:
k
(1/5) = ----------
(-3)^2
1 k
or ------- = ----------
5 9
Solving for k through cross-multiplication, we get
5k = 9, or k = 9/5
Answer:
6
Step-by-step explanation:
By, x=8-2
=6 ans
Ok it's answer
