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
Semmy [17]
3 years ago
9

Study the given data set. {77,4,62,10,45,9,38,80,2}. What is the standard deviation of the data?

Mathematics
1 answer:
vladimir1956 [14]3 years ago
4 0

Answer:

29.7 is the standard deviation :)

You might be interested in
Which is greater one hundred four and twelve hundredths or one hundred four and two thousandths
Mariulka [41]
One hundred and two thousandths
7 0
3 years ago
Read 2 more answers
A mass attached to a spring is pulled toward the floor so that its height above the floor is 10 mm (millimeters). The mass is th
e-lub [12.9K]

Answer:

a) The mass is released at t = 0 when h is minimum. Half a cycle later h reaches its maximum and another half a cycle it reaches its minimum again. Hence over one cycle, h varies with t as follows:

b) According to the graph obtained in part a), h(t) could be modeled by a cosine function shifted (translated) vertically up and horizontally to the right. Hence

Step-by-step explanation:

5 0
2 years ago
I not good at math..please help!
saw5 [17]
The answer is 20%.  Brainliest answer me.
3 0
2 years ago
Read 2 more answers
In what place is the digit 1 in the number 607.912<br> hundreds<br> tens<br> tenths<br> hundredths
e-lub [12.9K]

Answer:

tenths.........

Step-by-step explanation:

.....is the answer

6 0
3 years ago
Read 2 more answers
To test the belief that sons are taller than their​ fathers, a student randomly selects 13 fathers who have adult male children.
KATRIN_1 [288]

Answer:

1) B. The differences are normally distributed or the sample size is large

C. The  sample size mus be large

E. The sampling method results in an independent sample

2) The null hypothesis H₀:  \bar x_1 =  \bar x_2

The alternative hypothesis Hₐ: \bar x_1 <  \bar x_2

Test statistic, t = -0.00693

p- value = 0.498

Do not reject Upper H₀ because, the P-value is greater than the level of significance. There is sufficient evidence to conclude that sons are the same height as their fathers  at 0.10 level of significance

Step-by-step explanation:

1) B. The differences are normally distributed or the sample size is large

C. The  sample size mus be large

E. The sampling method results in an independent sample

2) The null hypothesis H₀:  \bar x_1 =  \bar x_2

The alternative hypothesis Hₐ: \bar x_1 <  \bar x_2

The test statistic for t test is;

t=\dfrac{(\bar{x}_1-\bar{x}_2)}{\sqrt{\dfrac{s_{1}^{2} }{n_{1}}-\dfrac{s _{2}^{2}}{n_{2}}}}

The mean

Height of Father, h₁,  Height of Son h₂

72.4,      77.5

70.6,      74.1

73.1,       75.6

69.9,      71.7

69.4,      70.5

69.4,      69.9

68.1,       68.2

68.9,      68.2

70.5,       69.3

69.4,       67.7

69.5,       67

67.2,       63.7

70.4,       65.5

\bar x_1  = 69.6      

s₁ = 1.58

\bar x_2 = 69.9

s₂ = 3.97

n₁ = 13

n₂ = 13

t=\dfrac{(69.908-69.915)}{\sqrt{\dfrac{3.97^{2}}{13}-\dfrac{1.58^{2} }{13}}}

(We reversed the values in the square root of the denominator therefore, the sign reversal)

t = -0.00693

p- value = 0.498 by graphing calculator function

P-value > α Therefore, we do not reject the null hypothesis

Do not reject Upper H₀ because, the P-value is greater than the level of significance. There is sufficient evidence to conclude that sons are the same height as their fathers  at 0.10 lvel of significance

8 0
3 years ago
Other questions:
  • Please answer numbers 13 14 and 15
    7·1 answer
  • In a typical symphony orchestra, 16 out of every 100 musicians are violinists. What fraction of the orchestra are violinists?
    12·1 answer
  • For her presentation on the Wonders of the World, Mary baked a square pyramid-shaped cake as pictured below. The slant height of
    13·1 answer
  • Write the number 1/10,000,000 as a power of 10 using a negative exponents
    5·1 answer
  • What is the answer to 9.99999999×9.999999999
    15·1 answer
  • Help please<br> dghsshjhjs
    7·1 answer
  • Plz help, I promise I will give brainliest
    14·2 answers
  • Taylor went shopping for a new camera. Sales tax where she lives is 4.5%. The price of the camera is $28. Find the total price i
    6·1 answer
  • The perimeter of a triangle is 40 inches. The middle length side is twice as long as the short
    8·1 answer
  • Find the midpoint of A and B where A has coordinates (2, 3)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!