Answer:
The probability that at least one of them is careful about personal information is 0.9744.
If the survey subjects volunteered to respond, then this a voluntary sampling and the estimated probability p may be biased, as only the people interested in the topic participate.
Given the subject of the survey, it is estimated that the ones who answered the survey are more careful about personal information and then the propability p is biased to a higher level than it should be if the sample was random.
Step-by-step explanation:
We can model this with a random variable, with sample size n=4 and probability of success p=0.6.
The probability that k individuals are more careful about personal information when using a public Wi-Fi hotspot in the sample is:
We have to calculate the probability that 1 or more are more careful about personal information when using a public Wi-Fi hotspot. This can be calculated as:
The probability that 1 or more individuals in the sample are more careful about personal information when using a public Wi-Fi hotspot is 0.9744.
Answer:
(- 3, - 6, 0)
Step-by-step explanation:
Since the dilatation is centred at the origin, multiply each of the coordinates by the scale factor 3
(- 1, - 2, 0) → (- 3, - 6, 0)
Answer:
Letters in math are called varables. They are used as symbols that are applied to an unkown nummber.
Step-by-step explanation:
Answer:
41 43 45
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Please find attached the diagram used in answering this question
A box plot is used to study the distribution and level of a set of scores
the scores are distributed into 4 groups. Each group has a value of 25%
the box plot consists of two lines and a box. the two lines are known as whiskers. the whiskers represent scores outside the middle 50%
On the box, the first line to the left represents the lower quartile. 25% of the score represents the lower quartile
the next line on the box represents the median. 50% of the score represents the median
The third line on the box represents the upper quartile. 75% of the scores represents the upper quartile
In this question, 68 is on the second line which represents the median. Thus 1/2 of the height are at least 68 inches
