Mrs. Fox met with 120 students. If three- quarters were girls, how many boys were at the meeting
1 answer:
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Answer:
b. Because the probability of being 15 or more correct is 0.0207, it is likely that she is just guessing at the questions.
Step-by-step explanation:
-This is a binomial probability distribution with p=0.5, n=20 and x=15.
The function is expressed as:
We calculate the probability of guessing 15 or more correctly:
The probability of passing, guessing 15+ correctly, is 0.0207. This probability is very low and it is it is likely that she is just guessing at the questions
Answer:
Hope this image helps you. (sorry if it's tiny writing.)
Step-by-step explanation:
Equivalent expressions are expressions of equal values
The simplified expression of (3 - 4i) + (7 - 6i) is
The expression is given as:
Remove brackets in the above expression
Rewrite the expression by collecting the like terms
Next, evaluate the like terms
Hence, the simplified expression of (3 - 4i) + (7 - 6i) is
Read more about equivalent expressions at: