1. To determine the most common injury cared for in an emergency room, a reporter goes to the same hospital every afternoon for one month during the summer and observes people entering the emergency room. She concludes that
second degree sunburn is the most common injury.
Unbiased and Biased Samples

Unbiased

Step-by-step explanation:

Your answer would be unbiased because the reporter is going in the same hospital every afternoon for one month which means that the reporter is using the Systematic sample and systematic is an unbiased sample

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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