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zavuch27 [327]
2 years ago
6

The average amount of time to finish this quiz is 26 minutes with a standard deviation of 1.2 minutes. What is the probability t

hat you will finish this quiz in 23.84 minutes or less? Write your answer as a percentage with 2 decimals.
Mathematics
1 answer:
boyakko [2]2 years ago
7 0

Answer:

What is the probability that you will finish this quiz in 23.84 minutes or less?

0.03593

Write your answer as a percentage with 2 decimals

= 3.59%

Step-by-step explanation:

The z score formula is given as:

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Mean = 26 minutes

Standard deviation = 1.2 minutes.

The probability that you will finish this quiz in 23.84 minutes or less(≤) is calculated as:

z = (x-μ)/σ

z = 23.84 - 26/1.2

z = -1.8

Probability value from Z-Table:

P(x ≤ 23.84) = 0.03593

Converting to percentage

0.03593 × 100

= 3.593

Approximately to 2 decimal places = 3.59%

You might be interested in
TV−→− bisects ∠RTS. If the m∠RTV=(16x−6)° and m∠VTS=(13x+9)° , what is the value of x and the m∠RTV ?
natta225 [31]

Answer:

x = 5

RTV = 74

Step-by-step explanation:

Given

RTV=16x - 6

VTS=13x+9

Required

Determine the values of x and RTV

Since, TV is a bisector, then

RTS = RTV + VTS --- (1)

and

RTV = VTS -- (2)

Substitute values of RTV and VTS in (2)

16x - 6 = 13x + 9

Collect Like Terms

16x - 13x = 9 + 6

3x = 15

Solve for x

x = 5

Substitute 5 for x in RTV=16x - 6

RTV = 16 * 5 - 6

RTV = 80 - 6

RTV = 74

8 0
2 years ago
4. Lola is 15 years old and works in a factory every weekend. Why might this be illegal? What are the specific laws protecting L
gulaghasi [49]
This is not illegal because she is 15. in factories you have to be at least 15 years old. but age 16 is the appropriate age for you to work in a factory. 
5 0
2 years ago
mrs sogiba is catering for her sons birthday party. she has invited some of her sons friends to the party. the number of friends
Alex
The only ones that would work are if the factor is composite and if 1 is added to it it can be divided into 48. So 15 would work. The factor 15 is composite, and if 1 is added it can be divided into 48.Therefore the son is 15.
7 0
2 years ago
Read 2 more answers
Evaluate ∣∣256+y∣∣ for y=74. A. 225 B. 315 C. 345 D. 4712
aleksklad [387]

Answer:

678

Step-by-step explanation:

5 0
2 years ago
Which of the following gives all of the sets that contain -1/2?
fiasKO [112]
ANSWER


The set of all rational numbers and the set of all real numbers.


EXPLANATION

The set of rational numbers contains all numbers that can be written in the form,


\frac{a}{b}


where a and b are integers and b≠0.


The given number is

-  \frac{1}{2}


It belongs to the set of rational numbers.


The set of rational numbers is a subset of the set of real numbers.

Hence

-  \frac{1}{2}
also belongs to the set of real numbers.


The correct answer is A.
3 0
2 years ago
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