Mathematics, 04.04.2020 12:15 brapmaster764

The number of contaminating particles on a silicon wafer prior to a certain rinsing process was determined for each wafer in a sample of size 100, resulting in the following frequencies: Number of particles 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Frequency 1 3 3 12 11 15 17 10 12 4 5 3 1 2 1 (a) What proportion of the sampled wafers had at least one particle? At least five particles? (Round your answers to two decimal places.)

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The number of contaminating particles on a silicon wafer prior to a certain rinsing process was dete...