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Art [367]
3 years ago
8

A survey shows that 67%of peanut butter lovers prefer chunky-style.Out of 300 people surveyed, how many can be predicted to say

they prefer chunky-style peanut butter
Mathematics
1 answer:
tresset_1 [31]3 years ago
8 0

Answer:

The number of people out of 300 ,  who said they prefer chunky-style peanut butter is 201 .

Step-by-step explanation:

The number of people on which surveyed done = 300 people

The percentage of peanut butter lovers prefer chunky-style = 67 %

Let The number of peanut butter lovers prefer chunky-style = x

So,  The number of peanut butter lovers prefer chunky-style = 67 % of 300

Or,  The number of peanut butter lovers prefer chunky-style = \frac{67}{100} × 300

Or,  x = 0.67 × 300

∴     x = 201

Hence The number of people out of 300 ,  who said they prefer chunky-style peanut butter is 201 . Answer

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The upper quartile of a set of data is represented by which of the following?
Natali [406]

Answer:

The mode of the upper quarter of the data.

Step-by-step explanation:

3 0
3 years ago
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The harmonic mean of two real numbers x and y equals 2xy/(x + y). By computing the harmonic and geometric means of different pai
olasank [31]

Answer:

Conjecture :  2xy / ( x + y ) ≤  √xy

Step-by-step explanation:

Harmonic mean of  x and y = 2xy/( x + y )

<u>Formulate a conjecture about their relative sizes </u>

we will achieve this by computing harmonic and geometric means

Geometric mean = √xy

harmonic mean = 2xy/( x + y )

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attached below is the proof

7 0
2 years ago
Using two normal dice, what is the probability of rolling numbers that add up to 3?
Blizzard [7]
That would be rolling a 1 and a 2 .

so possibilities are 1 on first die and 2 on the second die

OR 2 on first die and 1 on the second.

Both of these have a probability of 1/6 * 1/6 = 1/36

so required probability = 1/36 + 1/36 = 2/36 = 1/18


4 0
3 years ago
The height of five soldiers included 60inches,67inches,65inches and 64inches,if the mean of the five soldiers is 65inches what i
Nadya [2.5K]

Answer:

The last guy's height is 69 inches

Step-by-step explanation:

mean=sum of all numbers/number of numbers

There are 5 numbers in the set which means that 65 is the sum of all five numbers divided by 5. To reverse that we multiply 65 by 5 to get the sum of all of the numbers.

65*5=325

325 is the sum of all of the numbers so to find the missing number you add up all of the known numbers in the set and find the difference between that sum and 325.

60+67+65+64=256

325-256=69

The missing guy's height is 69 inches.

3 0
3 years ago
Name the property used to make the conclusion. If x+ 3 = 17, then x = 14 -
zimovet [89]

Answer:

Subtraction property of inequality

Step-by-step explanation:

Step 1: Definition of Subtraction property

Subtraction property of equality refers to balancing an equation by using the same mathematical operation (minus) on both sides.

Step 2: Relate the definition above with the given question.

It can be seen from the statements in the question that 3 was subtracted from both sides of the initial equation to get:

x + 3 = 17 \\ x + 3 - 3 = 17 - 3 \\  x = 14

6 0
2 years ago
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