
Statystyka
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
Marta Mikosz
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ile wynosi średnia arytmetyczna liczb: 2, 5, 8
2
4
5
8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Średnia arytmetyczna pięciu liczb : 5, x, 1, 3, 1 jest równa 3 , wtedy x jest równe:
5
2
6
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz średnią ważoną liczb: 2, 4, 16, 32, którym przypisano następujące wagi: 0,9; 0,6; 0,4; 0,1.
5,1
7,2
6,4
6,9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Średnia ważona liczb 2,4, 6, z wagami odpowiednio 1,2,5 wynosi:
5
4
3
2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz średnią ważoną następujących ocen: 3 wagi 2, 1 wagi 5, oraz 6 wagi 3.
1,8
2,9
4,1
5,7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
W pięcioosobowym zespole średnia wieku trzech pań wynosi 26 lat, a średnia wieku dwóch panów wynosi 36 lat. Jaka jest średnia wieku wszystkich osób.
45
32
25
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile wynosi średnia płac w pewnej firmie jeżeli szef zarabia 6000 zł , 3 osoby zarabiają 1500 zł a jedna 4200 .
2940
3020
2980
2850
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