The table shows the number of calories in four meals and the cost of each meal. A 2-column table with 4 rows. The first column i
s labeled number of calories in the meal with entries 550; 1,250' 780; 650. The second column is labeled cost of the meal (in dollars) with entries 12, 11, 13, 10. Which best describes the strength of the model? a weak positive correlation a strong positive correlation a weak negative correlation a strong negative correlation
2 answers:
Answer:
The correlation coefficient between the variables number of calories in four meals and the cost of each meal is weak negative correlation.
Step-by-step explanation:
The data for the number of calories in four meals and the cost of each meal is as follows:
Number of Calories Cost of Meals
550 12
1250 11
780 13
650 10
Use the Excel function "CORREL(array1,array2)" to compute the correlation coefficient between the variables number of calories in four meals and the cost of each meal.
The correlation coefficient between the variables number of calories in four meals and the cost of each meal is -0.13.
The correlation coefficient between 0.00 to ±0.30 is considered as weak correlation coefficient.
The correlation value of -0.13 lies in the range 0 to -0.30. This implies that the correlation coefficient between the variables number of calories in four meals and the cost of each meal is weak negative correlation.
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There were 340,000 cattle placed on feed
How many of the 340,000 cattle placed on feed were between 700 and 799 pounds?
Given the fraction of total cattle for 700 - 799 pounds is 2/5
Let x be the number of cattle between 700 - 799 pounds
We make a proportion using the fraction
Cross multiply it and solve for x
340000* 2 = 5x
680000 = 5x
Divide by 5 on both sides
So x= 136,000
There were 136,000 cattle between 700 and 799 pounds