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A lecture hall has 200 seats with folding arm tablets, 24 of which are designed for left-handers. The typical size of

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A lecture hall has 200 seats with folding arm tablets, 24 of which are designed for left-handers. The typical size of classes that meet there is 194, and we can assume that about 14% of students are left-handed. Use a Normal approximation to find the probability that a right-handed student in one of these classes is forced to use a lefty arm tablet.

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tutor Added an answer on Jul 13,2019

Binomial distribution has mu = n*p
and standard deviation = sigma = sqrt( npq ), where n is the number of trials, p is the probability of success, and q is the probability of failure. Be sure to use a continuity correction.

Find the probability that x is greater or equal to 177.

When using a continuous model to model a set of discrete events, it is necessary to make
an adjustment called the continuity correction. In this case, since x =
177, when the continuity correction is applied, the probability of interest is P(X is Greater than or equals
176.5).

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A lecture hall has 200 seats with folding arm tablets, 24 of which are designed for left-handers. The typical size of

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