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Vanyuwa [196]
3 years ago
15

Identify the symbols used for each of the following: (a) sample standard deviation: (b) population standard deviation; (c) sampl

e variance; (d) population variance.
a. The symbol for sample standard deviation is__

b.The symbol for population standard deviation__

c. The symbol for sample variance is__

d. The symbol for population variance is__
Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:

a) The symbol for sample standard deviation is S

b) The symbol for population standard deviation is б (sigma)

c) The symbol for sample variance S^{2}

d)The symbol for population variance is б^{2}

Step-by-step explanation:

Step 1:-

Population:-  Population consists of the total of the observations with which we are concerned.

Parameters:-  The statistical constants of the population namely mean , varianceб ^{2} and standard deviation 'б '

Sample:-  A sample is a subset of a Population

statistics:-

he statistical constants of the sample namely mean , varianceS ^{2} and standard deviation 'S '

step2:-

a) The symbol for sample standard deviation is S

b) The symbol for population standard deviation is б (sigma)

c) The symbol for sample variance S^{2}

d)The symbol for population variance is б ^{2}

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Crazy boy [7]
#1 - a) 11.4018
#2 - d) 7.62
#3 - a) 10.7238
#4 - b) 6.57

Explanation
#1 - The initial guess is 11.4022.  We first divide 130 by this guess:
130÷11.4022 = 11.40130852

We now average this number with the initial guess:
(11.40130852 + 11.4022)/2 ≈ 11.4018

#2 - The initial guess is 7.8.  We divide 58 by this guess:
58÷7.8 = 7.435897436

We now average this number with the initial guess:
(7.435897436 + 7.8)/2 = 7.617948718 ≈ 7.62

#3 - The initial guess is 10.7262.  We divide 115 by this guess:
115÷10.7262 = 10.72141112

We now average this number with the initial guess:
(10.72141112 + 10.7262)/2 = 10.72380556 ≈ 10.7238

#4 - The initial guess is 6.9.  We divide 43 by this guess:
43÷6.9 = 6.231884058

We now average this number with the initial guess:
(6.231884058+6.9)/2 = 6.565942029 ≈ 6.57
7 0
4 years ago
Find the positive square roots of the following numbers, giving your answers in prime factorization form
Ket [755]

Hello from MrBillDoesMath!

Answer:

prime factorization of sqrt( 5^4 x 7^2)   =  (5^2) *7

prime factorization of sqrt(2^6 x 11^10)   =  (2^3) * (11^5)


Discussion:

sqrt( 5^4 x 7^2)  = 5^2 * 7    => as 5 and 7 are prime numbers

prime factorization = 5^2 *7


sqrt(2^6 x 11^10)  = 2^3 * 11^5   => as 2 and 11 are prime numbers

prime factorization = 2^3 * 11^5



Thank you,

MrB

8 0
3 years ago
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Answer:

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PLEASE HELP! I SUCK AT MATHHH, THANK YOUUU!!!
vfiekz [6]

Answer: 21/400

Step-by-step explanation:

Multivitamin:

8 cherry, 5 grape, and 7 orange

Total fruits in Multivitamin container :

(8 + 5 + 7) = 20

P(orange) = Total required outcome / Total possible outcomes)

P(orange) = 7/20

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Total fruits in calcium vitamin container:

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