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Liula [17]
3 years ago
13

Suppose we fit a regression line to predict the number of incidents of skin cancer per 1,000 people from the number of sunny day

s in a year. For a particular year, we predict the incidence of skin cancer to be 1.5 per 1,000 people, and the residual for this year is 0.5. Did we over or under estimate the incidence of skin cancer? Explain your reasoning.
Mathematics
1 answer:
Jet001 [13]3 years ago
6 0

Answer: The incidence of skin cancer (melanoma) has been underestimated.

Step-by-step explanation: The frequency of melanoma is more than 20 times higher in whites than in black Americans. In general, the risk of melanoma in the course of life is approximately 2.6% (1 in 38) for whites, 0.1% (1 in 1.000) for black people and 0.58% (1 in 172) for Hispanics. the risk for each person can be affected by a different number of factors.

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The length of a rectangular is 5/2 unites greater then twice its width if it’s width w which expression gives the perimeter of t
strojnjashka [21]

If width is w the length can be represented as 5/2+2w.

Formula for perimeter is 2l + 2w

So it would be 2w + 2(5/2 + 2w)

OR 2w + 5 + 4w

OR 6w + 5



See if this helps ;)

5 0
4 years ago
Ginny is cutting construction paper into rectangles. She needs to cut one rectangle that is 16 inches × 13 1/4 inches. She needs
kykrilka [37]

Answer:

317.92 square inches

Step-by-step explanation:

Rectangle A:

Area of a rectangle = length × width

Length = 16 inches

Width = 13 1/4 inches = 53/4 inches

Area of a rectangle = length × width

= 16 inches × 53/4 inches

= (16 * 53) / 4 inches²

= 848/4

= 212 square inches

Rectangle B:

Area of a rectangle = length × width

Length = 10 1/3 inches = 31/3 inches

Width = 10 1/4 inches = 41/4 inches

Area of a rectangle = length × Width

= 31/3 inches × 41/4 inches

= (31 * 41) / (3 * 4) square inches

= 1271 / 12

= 105.92 square inches

How many total square inches of construction paper does Ginny need?

total square inches needed = Area of rectangle A + Area of rectangle B

= 212 square inches + 105.92 square inches

= 317.92 square inches

7 0
3 years ago
A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many
Lostsunrise [7]

Answer:

Since, there are 21 blue marbles for every 4 white marbles, therefore the ratio of blue marble to white marbles is 21:4.

Step-by-step explanation:

4 0
3 years ago
I make 2.5kg of popcorn and eat 750g of it while watching a movie how much pop corn is left
kakasveta [241]
2.5 kg-750grams=1.75 kilograms
4 0
4 years ago
What is 2x + 4 - 3x=-11
sertanlavr [38]
Combine like terms
-x=-15
divide by -1
x=15
5 0
4 years ago
Read 2 more answers
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