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
elena-s [515]
2 years ago
7

A sample of restaurants in a city showed that the average cost of a glass of iced tea is $1.25 with a standard deviation of 7¢.

If a new restaurant charges a price for iced tea that has a z-value of -1.25, then what is the tea’s actual cost?
Mathematics
2 answers:
san4es73 [151]2 years ago
8 0

Answer: It is actually 1.16$ (The guy below accidentally added an extra 1)

Step-by-step explanation:

jek_recluse [69]2 years ago
6 0

Answer:

The tea's actual cost is $116.25

Step-by-step explanation:

* Lets revise how to find the z-score

- The rule the z-score is z = (x - μ)/σ , where

# x is the score

# μ is the mean

# σ is the standard deviation

* Lets solve the problem

- The average cost of a glass of iced tea is $1.25

- The standard deviation of it is 7 cents

- A new restaurant charges a price for iced tea that has a

 z-value of -1.25

* Lets change the average cost to cent

∵ $1 = 100 cents

∴ The average cost of a glass of iced tea = 1.25 × 100 = 125 cents

∵ z = (x - μ)/σ

∵ z = -1.25

∵ μ = 125

∵ σ = 7

∴ -1.25 = (x - 125)/7 ⇒ multiply both sides by 7

∴ -8.75 = x - 125 ⇒ add 125 to both sides

∴ 116.25 = x

* The tea's actual cost is $116.25

You might be interested in
a simple random sample is group of answer choices a sample that gives every possible sample of the same size from the same popul
AVprozaik [17]

It is also called as Random  Sample experiment.

<h3>What is random sample experiment?</h3>
  • Random assignment is a technique used in experimental research to divide individuals from your sample into several groups using randomness.
  • With this approach, each sample participant has a known or equal chance of being assigned to either the experimental group or the control group.
  • In an experiment, random assignment and random selection are both possible.
  • Imagine that 500 people are randomly chosen from a population to take part in your study.
  • A subset of a statistical population called a simple random sample is one in which each member has an equal chance of being chosen. A straightforward random sample is intended to be an objective depiction of a group.

Hence, it is an random experiment.

learn more about random experiment.

brainly.com/question/23553602

#SPJ4

3 0
11 months ago
Madeline and Isaac are baking cakes for a fundraiser. Madeline has already made 9 cakes and is making cakes at a rate of 1 cake
Nadya [2.5K]

Answer:

17

Step-by-step explanation:

5 0
2 years ago
EXAMPLES: Solve for the angle<br> A) P<br> 106°<br> Q<br> S<br> R<br> 174°
Anarel [89]

Answer:

Step-by-step explanation:

To find x, add together the intercepted arcs, 106 and 174, and then divide that number in half. 174 + 106 = 280, and half of 280 is 140.

3 0
2 years ago
Is parallel to ? Explain. Yes, because both lines have a slope of . Yes, because both lines have a slope of . No, because the sl
d1i1m1o1n [39]

Answer:

I'd need to see the lines but basically, parallel lines have to be directly across from each other and they have to be the same size, I put a pic so you can see what I mean

Hope this helps you

6 0
3 years ago
Read 2 more answers
Give the length of the line segments in the requested units.
azamat

1 cm = 10 mm

AC = 3 cm = 3 * 10 mm = 30 mm

CF = 2 cm = 2 * 10 mm = 20 mm

1 m = 100 cm => 1 cm = 0,01 m

EG = AB = 10 cm = 10 * 0,01 m = 0,1 m

4 0
2 years ago
Other questions:
  • Bakery had 54 rolls 1/6 sold in morning
    9·1 answer
  • Martina chose a random sample of 10 bags of candy from two different brands, A and B. All bags in the sample are the same size.
    13·2 answers
  • There are 11 paintings at an art show. Four of them are chosen randomly to display in the gallery window. The order in which the
    13·2 answers
  • 8. The length of a rectangular picture is 4 inches longer than three times the width. If the
    15·1 answer
  • HELP BRAINLYNST ANSWER 40 points plz help help with the whole page and just to make sure do the answers answer cause I wanna kno
    14·1 answer
  • Mr. Ornelas needed to travel 400 miles to reach Chicago from his
    5·1 answer
  • Need help soon please and that’s question 6
    11·1 answer
  • Lydia bought a shirt at 20% off its retail price of $40. She paid 5% tax on the price after the discount. How much did Lydia pay
    12·1 answer
  • What fraction is equivalent to. —-<br> 0.45?
    6·2 answers
  • PLEASEEEEEE HELPPPPP ASAPPPPP
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!