Yes, because the sample is random. If she had chosen the participants in any way other than randomly, it would not be representative of her entire school.
Answer:
You need to multiply by 6. Hint it say's it costs $6 per square meter that means times
Step-by-step explanation:
Answer:
the answer is 14 hope it helps.
Step-by-step explanation:

the decimals are commas and the double decimal is a real decimal
Answer:
c. 0.3421
Step-by-step explanation:
The computation of the probability of selecting the biased coin is shown below:
The probability of any coin selected is 1 ÷ 2
The probability in the case when the biased coin chosen & wins 1 ÷ 2 (1 - 0.74)
And, the win probability is 1 ÷ 2 (1 - 0.74) + 1 ÷ 2 (1 - 0.5)
Now the probability of biased or win is
= {1 ÷ 2 (1 - 0.74)} ÷ { 1 ÷ 2 (1 - 0.74) + 1 ÷ 2 (1 - 0.5)}
= 0.13 ÷ 0.38
= 0.3421
Hence, the correct option is c. 0.3421