. Let X denote the number of flaws along a 100-m reel of
Chapter 4, Problem 4.60(choose chapter or problem)
. Let X denote the number of flaws along a 100-m reel of magnetictape (an integer-valued variable). Suppose X has approximatelya normal distribution with 25 and 5. Use thecontinuity correction to calculate the probability that thenumber of flaws isa. Between 20 and 30, inclusive.b. At most 30. Less than 30.
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