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Statistic final 2021

Total questions: 50

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

Berikut data nilai ulangan Matematika kelas 4.

75, 60, 80, 80, 85, 75, 70, 60, 90, 85, 60, 80, 70, 65, 80, 85, 80, 90, 65, 75

Nilai ulangan tertinggi yang diperoleh murid kelas 4 adalah ….

a)

70

b)

80

c)

90

d)

100

2.

Perhatikan gambar di atas!

Selisih pengunjung pada hari senin dan kamis adalah … orang.

a)

10

b)

20

c)

30

d)

40

3.

Perhatikan tabel hasil ujian Matematika di atas!

Murid yang mendapatkan nilai 75 ke atas sebanyak … anak.

a)

3

b)

6

c)

9

d)

10

4.

Tinggi rendahnya atau panjang pendeknya batang pada diagram batang bergantung dari ....

a)

Jenis data

b)

Besar kecilnya frekuensi

c)

rata-rata data

d)

jumlah seluruh data

5.
What is the range in gas mileage for cars?
a)
2
b)
3
c)
4
d)
6
6.
Find the median of these numbers:
2, 3, 4, 5, 5, 7
a)
4
b)
5
c)
4.5
d)
6
7.
If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 
a)
84
b)
90
c)
85
d)
88
8.
A data set can have more than one median?
a)
True
b)
False
9.
A data set can have more than one mode
a)
True
b)
False
10.

To find the average or mean of a set of numbers, add up all the items and divide by...

a)

2

b)

The minimum

c)

The maximum

d)

The number of items

11.
What is the range?
a)
average
b)
biggest-smallest
c)
the middle #
d)
# happening the most
12.
The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?
a)
5
b)
6
c)
9
d)
11
13.
Find the range.
5, 15, 10, 20, 15, 10, 15
a)
5
b)
10
c)
15
d)
13
14.

Set of methods to obtain data and then organize, summarize, present, analyze, interpret and reach conclusions based on the data

a)

Statistics

b)

Inferential Statistics

c)

Descriptive Statistics

15.

Set of techniques and methods that serve to:

Organize

Analyze

Represent

a)

Statistics

b)

Inferential Statistics

c)

Descriptive Statistics

16.

Set of methods that serve to:

Do generalizations Make objective decisions

a)

Statisctics

b)

Inferential Statistics

c)

Descriptive Statistics

17.

It is the complete set of all the elements that will be studied

a)

Inferential Data

b)

Population

c)

Sample

18.

It is a subset of selected members

a)

Population

b)

Sample

c)

Qualitative Data

19.

It is a set that groups a series of data with similar characteristics

a)

Variable

b)

Qualitative Statistics

c)

Quantitative Variable

20.

What type of sampling should be chosen if you want to know how many children likes art in Mexico

a)

Simple Random

b)

Stratified

c)

Cluster

d)

Systematic

21.

What type of sampling should be chosen if you want to know the opinion of Netflix users

a)

Cluster

b)

Quota

c)

Convenience

d)

Stratified

22.

15 students out of 20 succeed in Math quiz. The percentage of students who succeed is:

a)

25%

b)

0.75

c)

75%

d)

None of choices

23.

200 people are surveyed about their favorite football team. The population of this study is:

a)

Favorite football team

b)

1 people

c)

200 people

d)

Spain, Brazil and Germany

24.

The scores of a student in five tests: 10; 8; 13; x and 9.

Knowing that the average (mean) of these five scores is 12, then x =

a)

12

b)

14

c)

18

d)

20

25.

Tentukan median dari data berikut:

3, 5, 4, 6, 7, 8, 2

a)

2

b)

3

c)

4

d)

5

26.

7, 7, 8, 3, 3, 2, 8, 8, 8, 9, 6, 7, 7, 5, 4, 4, 3, 5.

Berapakah modus dari data di atas...

a)

7

b)

8

c)

4

d)

7 dan 8

27.

8, 8, 6, 6, 7, 8, 7, 4, 5

Berapakah nilai rata-rata dan modus dari data di atas...

a)

5,55 dan 8

b)

6,55 dan 7

c)

6,55 dan 8

d)

5,55 dan 6

28.

Untuk mengetahui variabilitas data suatu kelompok, maka formulasi hitung yang tepat untuk memperoleh informasi tersebut adalah...

a)

Standar Deviasi

b)

Kuartil

c)

Persentil

d)

Desil

29.

36, 30, 32, 27, 29, 27, 31, 22, 23, 33, 31, 27, 35,

22, 24, 22, 36, 21, 23, 18, 16, 29, 21, 14, 28, 40.

Berpakah nilai range dari data di atas...

a)

22

b)

24

c)

26

d)

28

30.

Which of the following best describes a Type I error?

a)

The null is true, but we mistakenly reject it.

b)

The null is false and we reject it.

c)

The null is false, but we fail to reject it.

d)

The null is true but we fail to reject it.

e)

The null is true, and we fail to reject it.

31.

The null hypothesis is represented by:

a)

Ha

b)

Ho

c)

t*

d)

HP

e)

μ

32.

The null hypothesis always contains a(an):

a)

< or >

b)

=

c)

>

d)

= or >

e)

≠

33.
When p-value is greater than alpha we:
a)
Accept Ho
b)
Accept Ha
c)
Fail to reject Ho
d)
Reject Ho
34.
Margin of error equals:
a)
Critical Value ∗ standard Error
b)
z*
c)
1.96
d)
Standard Error
35.
What is the Power of a test?
a)
A strong force
b)
The probability that we correctly reject a false null.
c)
The probability that we correctly accept a true null.
d)
How tough it is.
36.
What does it mean when a test is statistically significant?
a)
it has reached alpha level status
b)
the test statistic had a P-value higher than the alpha level
c)
the test statistic had a P-value lower than the alpha level
d)
it is important in practical terms
37.
How can you reduce both Type I and Type II errors?
a)
it can't be reduced
b)
redo the tests
c)
increase the sample size
d)
tamper with the data
38.
To test a claim about a mean, when the population standard deviation is unknown we use:
a)
z procedures
b)
Pythagorean Theorem
c)
t procedures
d)
np > 10 and n(1-p) > 10
39.

When conducting a significance test for the difference in proportions, why do we pool the data when finding standard error?

a)

Because we like to swim

b)

Because we assume p1 = p2 in Ho

c)

Because the sample sizes are always equal

d)

To be safe and make sure we don't underestimate the standard error

e)

Because we don't the standard deviation.

40.
What kind of software is Excel?
a)
Word processing software
b)
Spreadsheet Software
c)
Data Base Software
41.
In Excel rows are labeled by
a)
letters
b)
numbers
c)
rows and numbers
42.
In excel, columns are labeled by
a)
Letters
b)
Numbers
c)
Letters and numbers
43.
What button will add up a group of numbers
a)
Equals button
b)
Plus symbol button
c)
Auto-sum button
44.
When inserting a formula, always start with
a)
equals symbol
b)
plus symbol
c)
minus symbol
45.

Fungsi dalam Excel yang digunakan menghitung rata-rata dari sekelompok nilai

a)

SUM

b)

AVERAGE

c)

MAX

d)

IF

46.

Untuk penulisan rumus jumlah di sel B2 dengan sel C2 yang benar di bawah ini adalah

a)

+Sum(B2…C2)

b)

=Sum(B2:C2)

c)

=Sum(B2;C2)

d)

=Sum(B2,C2)

47.

Function dari Ms. Excel yang digunakan untuk menghitung number dari suatu interval dengan kondisi yang diinginkan adalah

a)

COUNTIF

b)

DCOUNT

c)

SUMIF

d)

SUM

48.

Daerah tempat penulisan rumus excel disbut

a)

menubar

b)

titlebar

c)

formulabar

d)

toolbar

49.

Fungsi yang digunakan untuk menghitung nilai terbesar data angka

a)

Sum

b)

Max

c)

Average

d)

Min

50.
A survey should always be ____ and ____.
a)
random and biased
b)
random and unbiased

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