63. An art teacher gave each group of students packages of clay. If there were 6 students in each group, how many packages of cl
2 answers:
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<u>First let's calculate the exponents.</u>
<u>Now we should multiply and divide.</u>
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<u>Now we should add and subtract.</u>
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<u>Convert the improper fractions into mixed numbers.</u>
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<u>Answer : </u>
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Answer:
Therefore, the probability is P=0.0084.
Step-by-step explanation:
We know that a multiple-choice test in which each question has 4 choices only one of which is correct. Assume that 9 questions are answered by guessing randomly.
Because we have 4 choices only one of which is correct, we get that p=0.25 and q=0.75.
We calculate the probability of getting exactly 6 correct answers.
n=9 and k=6.
Therefore, the probability is P=0.0084.