Original price $45 mark down 22% ?

1 answer:

8 0

An item that costs $45, when discounted 22 percent, will cost $35.1. The easiest way of calculating discount is, in this case, to multiply the normal price $45 by 22 then divide it by one hundred. So, the discount is equal to $9.9. To calculate the sales price, simply deduct the discount of $9.9 from the original price $45 then get $35.1 as the sales price.

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The observed tumor counts for the two populations of mice are:

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Type B mice = 13 * 12 = 156 counts

Step-by-step explanation:

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This is because the Poisson distribution can be used to approximate the the mean and variance of unknown data (type B mice count rate) using known data (type A mice tumor count rate). And the Poisson distribution gives the probability of an occurrence within a specified time interval.

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