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DiKsa [7]
3 years ago
10

A candy company produces individually wrapped candies. The quality control manager for the company believes that the weight of t

he candies is approximately normally distributed with mean 720 milligrams (mg). If the manager’s belief is correct, which of the following intervals of weights will contain the largest proportion of the candies in the distribution of weights?A) 740 mg to 780 mg.B) 700 mg to 740 mg.C) 680 mg to 720 mg.D) 660 mg to 700 mg.E) 620 mg to 660 mg.
Mathematics
1 answer:
Dimas [21]3 years ago
3 0

Answer:

B) 700 mg to 740 mg.

Step-by-step explanation:

Because the mean is the average of a data set, it means that there must be data above and below this value.

If the average is 720 mg, in the range there must be values that exceed this value and others that are below this.

We will analyze each of the options.

A) 740 mg to 780 mg.

There are values above 720, but not below 720.

B) 700 mg to 740 mg.

In this case, there are values below and above 720.

C) 680 mg to 720 mg.

There are only values below 720.

D) 660 mg to 700 mg.

There are only values below 720.

E) 620 mg to 660 mg.

There are only values below 720.

Therefore the answer is B) 700 mg to 740 mg. Since it fulfills the premise that guarantees the mean.

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Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water
Hoochie [10]

Answer:

70

Step-by-step explanation:

You have to use ratios.  If 5 of 12 members bought water, then x of 168 members will buy water.

\frac{5}{12}  = \frac{x}{168}\\12x = 840\\x = 70

70 members will buy bottled water.

8 0
3 years ago
Jim is enclosing a rectangular garden with 170 feet of fencing. The length of the garden is 10 feet more than twice it's width,
Hunter-Best [27]

Answer: Area = 1500 feet^2

Step-by-step explanation:

Jim is enclosing a rectangular garden with 170 feet of fencing. This means the perimeter of the rectangular garden =170 feet

Let length = x

Let width = w

The length of the garden,x is 10 feet more than twice it's width, w. This means

x =10+2w---------1

Perimeter = 2x+2w =170---------2

Putting equation 1 in equation 2,

2(10+2w) +2w= 170

20 + 4w +2w = 170

6w = 170-20=150

w = 150/6

= 25feet

Put w=25 in equation 1

x =10 +2×25= 10+50=60 feet

Area = length × width = x×w

= 60×25=1500feet^2

5 0
3 years ago
Hey I need this answered i have no clue what to put pls help ​
Molodets [167]

Answer:

b is correct for Maria but c is correct for the boy

4 0
3 years ago
What is the elapesed time from 10:30pm to 12:15 am?
ehidna [41]
1 Hour and 45 minutes.
3 0
3 years ago
Read 2 more answers
PLEASE HELP ME OUT...
katrin2010 [14]

Answer:

area = 144\pi

Step-by-step explanation:

volume =  \frac{4}{3} \pi {r}^{3}  \\  \\ 288\pi =  \frac{4}{3} \pi {r}^{3} \\  \\ 3(288\pi) = 4\pi {r}^{3} \\  \\  \frac{3(288\pi)}{4\pi}  =  {r}^{3}  \\  \\ 216 =  {r}^{3}  \\  \\ r =  \sqrt[3]{216}  \\ r = 6

area = 4\pi {r}^{2}  \\ area = 4\pi ({6}^{2})  \\ area = 144\pi

7 0
3 years ago
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