Jan conducts an experiment and tosses a coin 40 times. She gets heads 30 times instead of the expected 20. What could be a reason for this

Question

Jan conducts an experiment and tosses a coin 40 times. She gets heads 30 times instead of the expected 20. What could be a reason for this difference?
A) She miscounted.
B) She needs more trials.
C) She needs a different coin.
D) She got 30 and that is close enough.

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Audrey 1 month 2021-10-20T06:53:07+00:00 1 Answer 0 views 0

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    2021-10-20T06:54:54+00:00

    the answer is B. hope i helped

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45:7+7-4:2-5:5*4+35:2 =? ( )