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X On average, a textbook author makes 0.7 word-processing error per page on the first draft of her textbook. (a) What is the probability that on the next page she will make 3 or more errors? (b) What is the probability that a randomly selected page is error free? Table of poisson probability sums Click here to view the table of Poisson probability sums. Poisson Probability Sums § P(x; f) T=0 (a) The probability that a page has at least 3 errors is (Round to four decimal places as needed.) r 0 (b) The probability that a randomly selected page is error free is (Round to four decimal places as needed.) 0.1 0.9048 0.9953 0.9998 1.0000 0.5 0.6065 0.9098 1 2 3 4 0.2 0.8187 0.9825 0.9989 0.9999 1.0000 0.3 0.7408 0.9631 0.9964 0.9997 1.0000 0.4 0.6703 0.9384 0.9921 0.9992 0.9999 1.0000 0.9856 0.6 0.5488 0.8781 0.9769 0.9966 0.9996 1.0000 0.7 0.4966 0.8442 0.9659 0.9942 0.9992 0.9999 1.0000 0.8 0.4493 0.8088 0.9526 0.9909 0.9986 0.9998 1.0000 0.9 0.4066 0.7725 0.9371 0.9865 0.9977 0.9997 1.0000 0.9982 0.9998 1.0000 5 6 r 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 r 0 1 1.0 0.3679 0.7358 0.9197 0.9810 0.9963 0.9994 1.5 0.2231 0.5578 0.8088 0.9344 0.9814 0.9955 0.9991 0.9998 1.0000 2.0 0.1353 0.4060 0.6767 0.8571 0.9473 0.9834 2.5 0.0821 0.2873 0.5438 0.7576 0.8912 0.9580 3.0 0.0498 0.1991 0.4232 0.6472 0.8153 0.9161 GUYOTA CORO 3.5 0.0302 0.1359 0.3208 0.5366 0.7254 0.8576 0.9347 0.9733 0.9901 0.9967 0.9990 4.0 0.0183 0.0916 0.2381 0.4335 0.6288 0.7851 0.8893 0.9489 0.9786 0.9919 0.9972 4.5 0.0111 0.0611 0.1736 0.3423 0.5321 0.7029 0.8311 0.9134 0.9597 0.9829 0.9933 0.9976 0.9992 5.0 0.0067 0.0404 0.1247 0.2650 0.4405 0.6160 0.7622 0.8666 0.9319 0.9682 0.9863 0.9945 0.9980 0.9999 1.0000 0.9858 0.9958 0.9989 0.9997 0.9999 0.9955 0.9989 0.9998 1.0000 0.9665 0.9881 0.9962 0.9989 0.9997 10 1.0000 11 12 0.9999 1.0000 0.9997 0.9999 0.9991 0.9997