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A ALEKS: Makayla M. Chor x C secure https://www-awd aleks.com/alekscg ALEKS ulsLee/1o u lgNsikr7 BP3 H lvddbExZZxPuxKt4YykbEzlZHihPcOsDI nanu2rTA Ivi3lurJcUzCsbwwyAJ01ZuhgOR? HELP-WORKSHEET I DE 08 REPORT omous ! English Makayla Chord MyPie Review Diet ments e Book Calculator ssignm Gradebook Calendar Intro Stat Might we be able to predict life expectancies from birthrates? Below are bivariate data giving birthrate and life expectancy information for each of twelve countries. For each of the countries, both X, the number of births per one thousand people in the population, and y, the female life expectancy (in years), are given. Also shown are the scatter plot for the data and the least-squares regression line. The equation for this line is y = 83.15-0.50x Female life in years) 65.5 62.2 59.7 Birthrate, rofbirths perl 1000 pop.) expectancy, 49.4 25.8 16.5 48.5 15.9 46,1 24.9 6.6 17.7 48.4 3.9 60.7 5.7 57.8 74.0 66.8 3.4 55.4 Figure 1 Based on the sample data and the regression line, answer the following: Fill in the blank: For these data, birthrates that are lesst tend to be paired with female life expectancies that re expectancies the mean of the barthrates the mean ofthe female life Choose one 2. Fill in the blank: According to the regressien equation, for an increase ot one (birth per 1000 pecple) in birthrate, there is a corresponding expectancy of 0.50 years in female life Choose one 3. From the reression equation, what is the predicted fenale life expectacy nyears) when the butluate is 48.4 baths per 1000 people? Round your answer to at least one decimal plae) . What was the observed female life expectancy yeas) when the bithe was 484 births per1000 people? Type here to search EEEE9:52 PM 8ys/2017

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We are allowed to do 1 question at a time. Post again for second question.

1Q birthrate and expectance

Ans a) More should be the answer

B) decrease

c) y = 83.15 - 0.5x

when x = 48.4

y = 58.95

d) Observed value from table given is = 55.4

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