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Total questions: 12
Worksheet time: 3mins
A large company has an inspection system for batches of small
compressors purchased from vendors. A batch typically contains 15
compressors. In the inspection system, a random sample of 5 is selected and all are tested. Suppose there are 3 faulty compressors in the batch of 15, how many ways to get all three faulty compressors during sampling.
66
3,003
6
15
Selection of respondents is predetermined according to the characteristics of interest made by the researcher.
Convenience sampling
Purposive sampling
Quota sampling
Random sampling
An event with more than one outcome.
Null space
Single event
Event
Compound event
Deals with the collection, organization, presentation, analysis and interpretation of data.
Statistics
Inferential Statistics
Research Method
Descriptive Statistics
Five different mathematics books, 4 different electronic books, and 2 different communication book are to be placed in a shelf with the books of the same subjects together. Find the number of ways in which the books can be placed.
40
39916800
5760
3,**60
The process of selecting units (e.g. people , organization) from a population of interest.
Sampling
Random sampling
Stratified samplied
Cluster sampling
In how many ways can the letters of the word "PROBABILITIES" be arranged if the first placed is to be filled with a consonant and no consonants are to be adjacent yo each other?
6227020800
320400
1716
3628000
They have no elements in common.
Compound event
Mutually exclusive event
Dependent event
Single event
In a family of children of 5, how many ways the first two are girls and the last is a boy?
4
1
32
10
The MESS, official club of ME students, lists as its officers 2 students from first year to fifth year. if a committee of five will be formed, how many ways all year level will be represented?
2
10
5
16
How many different permutations ca be made from the word MECHANICAL?
3628800
907200
39916800
1814400
S = { x / 0 < x ≤ 20 }
A = { x / x are even numbers }
B = { x / x are divisible by 3 }
Find: A (intersect) ( ∅ U B )
