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
Genrish500 [490]
2 years ago
11

A Sample Of 100 Clients Of An Exercise Facility Was Selected. Let X- The Number Of Days Per Week That A Randomly Selected Client

Uses The Exercise Facility X | Frequency | 1 15 2 30 3 28 4 1O Find The Number That Is 1.5 Standard Deviations BELOw The Mean. (Round Your Answer To Three Decimal Places.)
Mathematics
1 answer:
julia-pushkina [17]2 years ago
4 0

Answer: 1.013

Step-by-step explanation:

Given the following data :

X_______f___fx___fx²

1_______15__15___15

2______30__60__120

3______28__84__252

4______10__40___160

______ 83__199__547

Number that is 1.5 standard deviations below the mean :

Mean(m) :

Σfx /Σf

(15 + 30 + 28 + 10) / 83

= 199 / 83

= 2.3976

Standard deviation(s) :

Sqrt[(Σfx² - (Σfx)²/Σf) /Σf-1]

sqrt[(547 - (199)²/83) / 83 - 1]

sqrt[(547 - (39601/83) / 82]

sqrt[(547 - 477.12) / 82]

sqrt(0.8522)

Standard deviation = 0.9231

1.5 standard deviations below the mean:

Mean - 1.5(standard deviation)

2.3976 - 1.5(0.9231)

2.3976 -1.38465

= 1.01295

= 1.013

You might be interested in
Write the equation in y=mx+b form please????
Solnce55 [7]

ANSWER

y =  - 2x - 5

EXPLANATION

We can use any two points to determine the slope.

The line passes through;

(-3,1) and (-5,5).

The slope is given by

m =  \frac{y_2-y_1}{x_2-x_1}

This implies that;

m =  \frac{5 - 1}{ - 5 -  - 3}

m =  \frac{4}{ - 2}  =  - 2

We can now find the equation using the formula;

y-y_1=m(x-x_1)

y   - 1 =  - 2(x  + 3)

Expand:

y =  - 2x -6 + 1

y =  - 2x - 5

6 0
3 years ago
The equation c = start fraction: numerator: 5 denominator: 9: end fraction (f – 32) is used to convert temperature from degrees
krek1111 [17]
It will increase by 5/9 of a degree.

If you convert the given equation into slope intercept form, you will have:

c = (5/9)f + 160/9

In this form, it is easier to see the slope. The line would be increase by a rate of 5/9.
3 0
3 years ago
At lunch, Darius ordered a slice of pizza for $2.75, French fries for $1.20, and a drink for $1.35. Sale tax was $0.37. If Dariu
Ulleksa [173]

Answer:

he gets 4.33 dollars back

Step-by-step explanation:

add 2.75+1.20+1.35+0.37= 5.67

10-5.67=4.33 $

8 0
2 years ago
Read 2 more answers
Please help ill give branlist and extra points if yall help me with this
neonofarm [45]
Number 1 is B Number 2 is C
5 0
2 years ago
Read 2 more answers
39.4 is what percent of 64 round to the nearest 100
Valentin [98]

Answer:61.7

Step-by-step explanation:

maths

4 0
2 years ago
Other questions:
  • You can walk 1 1/2 miles in 1/2 hour what is your average speed
    13·2 answers
  • The product of a number and 11 is 2
    9·1 answer
  • 15 POINTS!!! HELP ASAP! Liz wants to write the phrase “the difference of seven and the number squared” as an algebraic expressio
    5·1 answer
  • What is a equivalent fraction for 24/30
    7·1 answer
  • Find 3 fractions between 1/5 and 2/5
    12·2 answers
  • What is the equation of a circle with a center located at (-3, 4) and a diameter of 14?
    15·1 answer
  • Can you please help me create an graph for C pleaseeee I need the answer quick thanks!!!!
    8·1 answer
  • Help me solve this please.
    9·1 answer
  • Chris bought a new car for $11,000. If he
    7·1 answer
  • 5 mins on the clock on correct answers
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!