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
Katen [24]
3 years ago
6

The reacttimes data set has 50 observations of human reaction times to a physical stimulus. The reaction times are named times a

nd arranged in increasing order below. 0.12 0.30 0.35 0.37 0.44 0.57 0.61 0.62 0.71 0.80 0.88 1.02 1.08 1.12 1.13 1.17 1.21 1.23 1.35 1.41 1.42 1.42 1.46 1.50 1.52 1.54 1.60 1.61 1.68 1.72 1.86 1.90 1.91 2.07 2.09 2.16 2.17 2.20 2.29 2.32 2.39 2.47 2.60 2.86 3.43 3.43 3.77 3.97 4.54 4.73 1. Find the mean and median of times without using r. You may
Mathematics
1 answer:
scoundrel [369]3 years ago
4 0

Solution: The formula for mean is:

Mean=\frac{\sum x}{n}

Where:

\sum x is the sum of given observations

n is the number of observations

\sum x=87.12

n=50

\therefore Mean =\frac{87.12}{50}= 1.74 rounded to two decimal places

To find the median, we need to first arrange the data in ascending order but we are already given the data in ascending order.

Therefore, the median is:

Median=\left(\frac{n+1}{2} \right)^{th} item

                  =\left(\frac{51}{2} \right)^{th} item

                  =25.5^{th} item

                  =1.52+0.5(1.54-1.52)

                  =1.52+0.01

                  =1.53

Therefore, the median = 1.53

You might be interested in
Audrey bought a refrigerator for $266 that was originally priced at $665. What percentage is the discount?
OlgaM077 [116]

Answer:

40.6%

Step-by-step explanation:

discount percentage:

x/y*100

266/655 *100 which is 40.6%

Hope this helps plz hit the crown :D

5 0
3 years ago
Can someone pls give me the answer I don’t get it and it’s due in 20 mins
horrorfan [7]

Answer:

Step-by-step explanation:

Cameron, Eliot, Ryan and Ava can ride as their height is more than or equal to 54

7 0
3 years ago
Read 2 more answers
Brainliest to the best answer
Alborosie

Answer:

<u>1</u>

7

Is your answer dear .

Hope it helps you:)

6 0
3 years ago
Read 2 more answers
Can someone help please!! i will give brainliest
olga_2 [115]

Answer:

1. $427.50

2. 50 hours

Step-by-step explanation:

1. First, find your salary at minimum hours, which is $360. Then, take your second equation, plug in 45, and solve using PEMDAS. This will give you $427.50

2. To solve this, you'll need to set it up like so:

495 = 13.5 (x - 40) + 360

Your next step will be to distribute the number outside the parentheses. This will give you:

495 = 13.5x - 540 + 360

Simplify, like so:

495 = 13.5x - 180

Solve.

495 = 13.5x - 180

+180             +180

This will give you:

675 = 13.5x

Divide each side.

675 = 13.5x

------    -------

13.5     13.5

  50 = x

7 0
3 years ago
Which function represents a vertical stretch of an exponential function
GalinKa [24]
Vertical stretch means the graph stretches upward, rising more rapidly than the original, the graph is steeper than the original. 
7 0
3 years ago
Other questions:
  • Find the area of the figure. Round to the nearest tenth.
    6·1 answer
  • How many cups of sugar does it take to get to the moon??
    12·2 answers
  • Write an equation for a line that is parallel to the graph of y=-3x+6 and passes through the point at (-4,7)
    10·1 answer
  • If nominal GDP is 2400 and the money supply is 400, what is the velocity?
    6·1 answer
  • Amy's car gets 32 miles per gallon. If her car's tank holds 15 gallons of gas, and she wants to keep a minimum of 1 gallon of ga
    6·1 answer
  • Which expressions have value between 1 and 2? choose all that apply.
    5·1 answer
  • In ΔQRS, q = 960 cm, r = 420 cm and ∠S=31°. Find the area of ΔQRS, to the nearest square centimeter.
    15·1 answer
  • In New York, an Uber costs $15 plus $1.84 per mile. If you are traveling from the airport, there is an additional charge of $7.9
    15·1 answer
  • Kevon Webster will bring hamburgers to grill. There are four patties per pound. He buys 28 pounds
    5·1 answer
  • What all can you tell me about this shape?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!