Answer:
D
Step-by-step explanation:
choice A is not guaranteed since the values varied from 0 to 7.
choice B seems alright, but doesn't include about or anything about the long run.
choice C is incorrect because 50% are less than 3.12 and 50% are greater than 3.12.
choice D seems pretty good, since it says average, long run, approach, etc.
choice E is incorrect because it says "will be". It is not definite.
Final answer:
The mean of 3.12 represents the average number of days per week that members are expected to visit the fitness center.
Explanation:
The mean of the random variable X, which represents the number of days per week that members visit a fitness center, is 3.12. This means that on average, members go to the fitness center about 3.12 days each week when considering all the members surveyed. It's an overall trend that indicates the central tendency or the 'typical' value that we would expect in this data set. It is calculated by multiplying each number of visit days by its relative frequency and adding all these products together, then dividing by the total number of members.
(b) Which mascot seems to be the winner? Why do you think that?
(c) Using only information from the unbiased survey, approximately what percent of students choose Wildcats for the new mascot?
(d) If there was 800 students in Larry’s school, approximately how many students in the school could he claim would vote for Mustangs? Round to the nearest whole number if necessary.
Answer:
7.
Step-by-step explanation:
To solve the equation a^2 - 49 by factoring, we can use the difference of squares formula. The difference of squares formula states that a^2 - b^2 can be factored as (a + b)(a - b).
In this case, a^2 - 49 can be rewritten as (a + 7)(a - 7).
By setting each factor equal to zero, we can solve for a:
a + 7 = 0
a = -7
a - 7 = 0
a = 7
Therefore, the solutions to the equation a^2 - 49 = 0 are a = -7 and a = 7.
Answer:(A+7)(A−7)
Step-by-step explanation:
Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) where a=A and b=7.
of a wall, how much paint is needed to cover the entire wall?
i need this asapp!
Answer: pretty sure it is 1 1/2 gallons
Step-by-step explanation:
1
4 of a pizza, Hannah ate
1
3 of a pizza, and Brett ate
1
2 of a pizza. Alex ate half as much as Bret.
A) How many pizzas did the friends eat? Show or explain your reasoning
Answer 1 8/24 or 1 1/3
Step-by-step explanation: 6/24 + 8/24 + 12/24 + 6/24
Answer:
they shared 3 pizzas that were each cut into 12 slices.
Step-by-step explanation:
Joe ate 4 slices.
paige ate 6 slices.
Darius ate 3 slices (12 ÷ 4 = 3).
hannah ate 4 slices (12 ÷ 3 = 4).
Brett ate 6 slices (12 ÷ 2 = 6).
Alex ate 12 slices (twice as much as Brett).