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Researchers often enter a lot of data into statistical software programs. The probability of making zero...

Researchers often enter a lot of data into statistical software programs. The probability of making zero to two errors per 1,000 keystrokes is 0.48, and thr probability of making three to five errors per 1,000 keystrokes is 0.28. Find the probabilities (per keystokes) associated with each of the following.

(a) at most two errors (b) at least three errors (c) at most five errors (d) more than five errors
Math   Statistics-And-Probability   
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