All categories

4 years ago

What is the mean distance between each data value and the mean of the data set.

Mathematics

1 answer:

madreJ [45]4 years ago

4 0

Mean absolute deviation. $MAD = \frac{\Sigma | x_i - \bar x |}{n}.$

You might be interested in

A jar contains 15 quarters, 9 dimes, 10 nickels and 6 pennies. A coin is selected at random, not replaced, then another coin is

Ksju [112]

Answer: 0.058

Step-by-step explanation:

Number of quarters = 15

Number of dimes = 9

Number of nickels = 10

Number of pennies = 6

Total number of coins = 40

The probability of selecting a quarter first will be 15/40 = 3/8

Since it's not replaced, there'll be 39 coins left and the probability of choosing a penny is 6/39 = 2/13

Therefore, P(quarter, then penny) will be:

= 3/8 × 2/13

= 6/104

= 0.058

8 0

3 years ago

Problem Page A bag contains 9 marbles: 2 are green, 4 are red, and 3 are blue. Mary chooses a marble at random, and without putt

murzikaleks [220]

Green: 2/9×100=22. 22%
Red: 4/9×100=44. 44%
Blue: 3/9×100=33. 33%

Probability: 22. 22%+44. 44%+
33.33%= 99.99%
100. 00-99. 99= 00. 01%

5 0

3 years ago

Solve the equation <br> 14(3x-1)=2x-23

irina1246 [14]

Answer:

$x=\frac{-9}{40} \\$

Step-by-step explanation:

Given Equation:

$14(3x-1)=2x-23$

Solving the bracket on L.H.S

$(14)(3x)-1(14)=2x-23$

$42x-14=2x-23$

Taking the terms of 'x' to one side and the constants to other side

$42x-2x=-23+14\\\\40x=-9\\\\x=\frac{-9}{40} \\$

The value of 'x' after solving the equation is:

$x=\frac{-9}{40} \\$

3 0

3 years ago

Which of the following is not true regarding sets of numbers ?

nasty-shy [4]

D. All rational numbers are integers

6 0

4 years ago

Read 2 more answers

Evaluate log 2 base 8

iren2701 [21]

Answer: The correct answer is: " 3 " .

_______________________________

Step-by-step explanation:

_______________________________

The problem given is:

_______________________________

Evaluate: log 2 base 8 .

_______________________________

Rewrite as: " $log_2}8 = ? _______________$ " ; $log_2}8 = ? _______________$

_______________________

Take note of the following definition of a logarithm:

_______________________

" $log_{m}n = a$ " ; ↔ " $m^{a} =n$ " ;

_______________________

in which: $m$ refers to the "base" ;

$n$ refers to the "argument" ;

$a$ refers to the "exponent" ;

______________________________

As such:

" $log_2}8 = ? _______________$ "

⇔ " $2^{x} = 8$ " ; Solve for "x" ;

_______________

Note:

2⁰ = 1 ;

2¹ = 2 ;

2² = 2 * 2 = 4 ;

2³ = 2 * 2 * 2 = 8 .

___________________

→ " $2^{x} = 8$ " ;

→ " $2^{3} = 8$ " ; since: " $2^{3} = 2 *2 *2 = 8$ " ;

→ as such: " x = 3 " ;

______________________

Thus:

"log 2 base 8 " ;

= $log{_{2}}8 = 3$ .

_______________________

Hope this helps!

Best wishes to you!

3 0

3 years ago