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@stepbystep001

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random variable that assumes countable values is called a Continues random variable.
Anonymous Quiz
24%
T
76%
F
The probability distribution of a discrete random variable can be presented in the form of a mathematical formula, a table, or a graph
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86%
T
14%
F
A random variable that can assume any value contained in one or more intervals is called a ........... random variable
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84%
continuous
16%
discrete
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السؤال اللي جاي علي دي
Derived Channel
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Determine which of the following considered a probability distribution
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15%
A
80%
B
6%
C
The time taken to commute from home to work
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11%
discrete random variable
89%
continuous random variable
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السؤال اللي جاي علي ده
Derived Channel
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standard deviation of x
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71%
1.204
18%
2.204
7%
3.204
4%
4.204
The standard deviation of a discrete random variable, denoted by 𝜎, measures the spread of its probability distribution.
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93%
T
7%
F
المحاضره ال 5
binomial probability distribution is one of the most widely used discrete probability distributions.
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91%
T
9%
F
It is applied to find the probability that an outcome will occur x times in n performances of an experiment
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17%
Permutations Formula
80%
binomial probability distribution
3%
None
repetition of a binomial experiment is called
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21%
trial
18%
Bernoulli
59%
trial ,Bernoulli
2%
None
Five percent of all DVD players manufactured by a large electronics company are defective. A quality control inspector randomly selects three DVD players from the production line. What is the probability that exactly one of these three DVD players is d
Anonymous Quiz
11%
0.1735
74%
0.1354
8%
0.1846
7%
1.9561
In Binomial Experiment Each trial has ........ possible outcomes.
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87%
2
4%
3
3%
4
2%
5
2%
6
1%
7
1%
8
In Binomial Experiment The trials are
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11%
dependent
75%
independent
14%
independent , dependent
For a given biased coin, the probability that the outcome of a toss is a head is 0.4. This coin is tossed 1,000 times. Calculate Stander Deviation
Anonymous Quiz
11%
240
63%
15.49
19%
400
7%
20
Let X be a random variable that follows Binomial distribution with expectation E(X) = 7 and variance V(X) = 6. Then the probability of success p is
Anonymous Quiz
22%
6 / 7
7%
36 / 49
69%
1 / 7
1%
1 / 49
A lot has 10% defective items. Ten items are chosen randomly from this lot. The probability that exactly 2 of the chosen items are defective is
Anonymous Quiz
7%
0.0036
73%
0.1937
13%
0.2234
7%
0.3874
If the trials are independent, we cannot apply the binomial
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20%
T
80%
F
Last week the company shipped 50 auto parts to a dealer. , it found out that 15 of those parts were defective, 17 auto parts from that shipment had already been sold. What is the probability that 14 of those 17 parts were good and 3 was defective?
Anonymous Quiz
10%
0.4056
15%
0.3267
69%
0.10719
6%
0.3618