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3 years ago

In a Survey of 500 people , 350 people dank only one drink. 60 people dink none them. Find the number of people who drink both ,

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

350+60= 410 & 500-410=90

Tcecarenko [31]3 years ago

3 0

Answer: The number of people who drank both is 90

This is because we need to subtract 350 people from 500 people, because we know that they didn't drink the drink. We have 150 people left. Another 60 people don't drink the drink at all, so we need to subtract that from the remaining 150 people left. We get the solution of 90 people who could only have drank both drinks based of of the givens you have provided.

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Answer:

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2 years ago

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3 years ago

Sunshine City was designed to attract retired people. Its current population of 75,000 residents has a mean age of 63 years and

Leokris [45]

Answer:

a) Identify the variable of interest.

Ages of the residents

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

Step-by-step explanation:

a) Identify the variable of interest.

Ages of the residents

The center of a distribution tells us about the Mean or Median of the distribution

The spread of a distribution tells us about the standard deviation of the population

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = Mean of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = Standard Deviation of the population = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

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7 0

3 years ago

In ΔJKL, l = 380 cm, j = 620 cm and ∠K=30°. Find the area of ΔJKL, to the nearest square centimeter.

irina1246 [14]

Answer:

58,900cm²

Step-by-step explanation:

Area of the triangle = 1/2absin thets

Area of the triangle = 1/2* i * j sin 30

Area of the triangle = 1/2 * 380 * 620 sin 30

Area of the triangle = 380 * 310 * 0.5

Area of the triangle = 380*155

Area of the triangle = 58,900cm²

hence the area of the triangle is 58,900cm²

3 0

2 years ago

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Harrizon [31]

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3 years ago