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Inessa [10]
3 years ago
11

How many counterexamples does it take to show that a conditonal statement is false?

Mathematics
1 answer:
iren [92.7K]3 years ago
5 0

<u>Answer:</u>

<u>one</u>

<u>Explanation:</u>

First, note that a conditional statement in mathematics refers to a statement in which a hypothesis is given followed by a conclusion. Such as saying if P then "Q”, P  and Q  are sentences.

For example, a good example of conditional statement;

"If today is Sunday,<u> then tomorrow is Monday"</u>(hypothesis not underlined; condition underlined). While the counterexample could be one example or statement that satisfies the condition(s) of the statement but does not satisfy the conclusion.

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Find the length of segment AC if AB is 7, BC is 12 and B is between a A and C
Alex17521 [72]

Answer:

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I am doing this math problem but I do not get it at all this I it Sam and Jesse can wash 5 cars each hour.They work for 7 hours
andreyandreev [35.5K]

They work for 7 hours each day over 2 days, Sam and Jesse washed 2 cars.

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An analyst for a large credit card company is going to conduct a survey of customers to examine their household characteristics.
zheka24 [161]

Answer:

We can conclude that the value of 1732 is a statistic who represent the sample selected. And the value of 1622 represent the population mean from all the customers with the previous data.

Step-by-step explanation:

Previous concepts

A statistic or sample statistic "is any quantity computed from values in a sample", for example the sample mean, sample proportion and standard deviation

A parameter is "any numerical quantity that characterizes a given population or some aspect of it".

Solution to the problem

For this case the analyst knows that from previous records that the mean for all the customers (that represent the population of interest) is \mu = 1622

He have a random sample of n =500 customers from the previous month and he knows that 1732 represent the sample mean for the selected customers calculated from the following formula:

\bar X = \frac{\sum_{i=1}^{500} X_i}{500}= 1732

So on this case we can conclude that the value of 1732 is a statistic who represent the sample selected. And the value of 1622 represent the population mean from all the customers with the previous data.

6 0
3 years ago
Need help on this please and thank you will try and mark brainliest if it will let me
creativ13 [48]
If you need me to clarify anything i got you

5 0
3 years ago
A diagram showing a neighborhood park is plotted on the coordinate plane. Each unit on the coordinate plane represents 1 yard. F
grandymaker [24]

Answer:

Step-by-step explanation

The length of the left sloping line

= √ (5^2 + 7^2) = √74.

The right sloping line

= √(5^2 + 5^2) = √50.

So the perimeter:

= √74 + √50 + 2 + 2 * 4 + 14

= 39.67 to nearest hundreth.

Area = 1/2 * 5 * 7 + 2*5 + 1/2 * 5 * 5 + 4*14

= 96.

3 0
2 years ago
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