Mathematics, 20.09.2020 02:01 khalfani0268

4) Sarah makes beaded necklaces to sell at art festivals. The number of beads per necklaces follows a normal distribution with a mean of 20 beads and a standard deviation of 5 beads. 95% of the necklaces have what
interval of beads?
I
5) If Sarah makes 600 necklaces, about how many will have less than 15 beads?
6) What percentages of necklaces will have more than 30 beads?
US

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4) Sarah makes beaded necklaces to sell at art festivals. The number of beads per necklaces follows...

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