1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoray [572]
3 years ago
6

The pounds of produce purchased at a grocery store on Friday between 1:00 p.m. and 6:00 p.m. is

Mathematics
1 answer:
givi [52]3 years ago
7 0

Answer:

The correct option is;

The first twenty-five customers

Step-by-step explanation:

For the given data, by calculation, we have;

The population average = 11.45

The average of the first five customers = 13.2

The average of the first ten customers = 11.6

The average of the first twenty customers = 12.5

The average of the first twenty-five customers = 11.72

Therefore both the first ten customers and the first twenty-five customers have good representation of the population mean with the mean of the first ten customers having a value of 11.6 is more closer to the population mean than the mean of the first twenty-five customers

However, by the central limit theorem, as the size of the sample continues to be increasingly larger, it becomes more and more representative of the population mean, this is more so because when the data is sorted, the population mean will be better represented by the mean of a large sample size

Hence the set of sample data needed to best represent the population mean is the first twenty-five customers.

You might be interested in
{3.1, 4.2, 7.2, 8.4, 12.2}
Romashka-Z-Leto [24]
X + 2 = 6.2
subtract 2 from both sides
x = 4.2
6 0
3 years ago
The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?
egoroff_w [7]

Answer:

(1, 3)

Step-by-step explanation:

You are given the h coordinate of the vertex as 1, but in order to find the k coordinate, you have to complete the square on the parabola.  The first few steps are as follows.  Set the parabola equal to 0 so you can solve for the vertex.  Separate the x terms from the constant by moving the constant to the other side of the equals sign.  The coefficient HAS to be a +1 (ours is a -2 so we have to factor it out).  Let's start there.  The first 2 steps result in this polynomial:

-2x^2+4x=-1.  Now we factor out the -2:

-2(x^2-2x)=-1.  Now we complete the square.  This process is to take half the linear term, square it, and add it to both sides.  Our linear term is 2x.  Half of 2 is 1, and 1 squared is 1.  We add 1 into the set of parenthesis.  But we actually added into the parenthesis is +1(-2).  The -2 out front is a multiplier and we cannot ignore it.  Adding in to both sides looks like this:

-2(x^2-2x+1)=-1-2.  Simplifying gives us this:

-2(x^2-2x+1)=-3

On the left we have created a perfect square binomial which reflects the h coordinate of the vertex.  Stating this binomial and moving the -3 over by addition and setting the polynomial equal to y:

-2(x-1)^2+3=y

From this form,

y=-a(x-h)^2+k

you can determine the coordinates of the vertex to be (1, 3)

5 0
3 years ago
Read 2 more answers
Y=99.99+23.75(x-1) as a Y=ax+b equation
Hatshy [7]

Answer:

y = 23.75x  + 76.24

Step-by-step explanation:

We want to rewrite

y = 99.99 + 23.75(x - 1)

in the form

y = ax + b

We expand to get:

y = 99.99 + 23.75x - 23.75

Regroup similar terms:

y = 23.75x - 23.75 + 99.99

Simplify:

y = 23.75x  + 76.24

This is now of the form

y = ax + b

where a=23.75 and b=76.24

6 0
3 years ago
Which graph represents a proportional relationship?
Colt1911 [192]

Answer:

represented by the graph of a straight line through the origin with a slope equal to the unit rate.

Step-by-step explanation:

For each point (x, y) on the graph, ž is equal to k, where k is the unit rate.

7 0
3 years ago
Read 2 more answers
Holly says 4.131131113... is a rational number. Which of the following best describes whether Holly is correct and why?? a.Holly
Leni [432]

Answer:

A. Holly is correct. Repeating decimals are always rational numbers.

Step-by-step explanation:

Rational number is the subset of:

  • Whole number (Positive integer + 0)
  • Natural number
  • Negative integers
  • Fractions
  • Decimals (Whether positive or not, whether terminating or non terminating)

Hope this helps ;) ❤❤❤

7 0
3 years ago
Read 2 more answers
Other questions:
  • You place a cup of 200oF coffee on a table in a room that is 67oF, and 10 minutes later, it is 195oF. Approximately how long wil
    6·1 answer
  • The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest
    11·2 answers
  • Find the value of the discriminant for all the equations. 1.5q2 +2q–3=0 2.3u2 -4u+1=0 3.7s2 +9s–4=0 4.6w2 –8w+5=0 5.5p2 +7p–3=0
    11·2 answers
  • The ratio of men to women in a certain factory is 3 to 4. There are 216 men. How many workers are there ?
    8·1 answer
  • Which of the following statements correctly compares the rate of change for the money payed, measured as
    15·2 answers
  • Eric found that about 60% of 80 classmates at school like hip-hop music. However, 70% of his 60 relatives like hip-hop.
    8·2 answers
  • PLS HELP MEE this one math problem:(
    12·2 answers
  • 7th grade math help!!
    14·2 answers
  • DUE TOMORROW. PLEASE HELP ME IF YOURE GOOD AT GEOMETRY
    12·2 answers
  • A rounded scoop of ice cream<br> is put onto a cone so that half<br> of it is in the cone.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!