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3 years ago

A normal probability distribution

Mathematics

1 answer:

julia-pushkina [17]3 years ago

6 0

Answer:

Option B) is a continuous probability distribution

Step-by-step explanation:

Properties of a normal probability distribution:

The mean, mode and median of the data is same.
It is a continuous probability distribution.
The area under the curve is 1.
The probability that any random variable X at a particular value is zero.

Thus, from the properties of normal distribution, the correct answer is:

Option B) is a continuous probability distribution

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Pls help will give the crown of correct

tangare [24]

Answer:

a) The watch is cheaper in Geneva.

b) The watch is cheaper by £20

Step-by-step explanation:

a) In which city is the watch cheaper?

Step 1. Translate Pounds into Swiss Francs.

£145 * 1.55 = 224.75 CHF

Step 2. Determine which price is higher.

224.75 is greater than 193.75.

Step 3. Always answer a Word problem in complete sentences.

The watch is cheaper in Geneva.

b) By how much is it cheaper?

224.75 - 193.75 = 31

Translate CHF to Pounds.

31 / 1.55 = 20

The watch is cheaper by £20.

3 0

2 years ago

A rectangle has a length of 5x + 2 ft and a width of 2x + 11 ft.

CaHeK987 [17]

Answer:

A = length * width

A = 5 (x+2)

A = 5x+10

I'm SO SORRY

4 0

3 years ago

Read 2 more answers

I will give BRAINLIEST PLS HELP y = x + 1/2 and z = 2x - 3, which of the following is equivalent to y + yz? PLS HELP

STALIN [3.7K]

Answer:

y+yz is: $2x^2-2x-1$

Step-by-step explanation:

Given expressions are:

$y = x+\frac{1}{2}\\z = 2x-3$

The given expressions are polynomials and we have to find the value of y+yz

First of all, we will find the product of y and z

We will use the distribution to find the product.

$yz = (x+\frac{1}{2})(2x-3)\\= x(2x-3)+\frac{1}{2}(2x-3)\\= 2x^2-3x+x-\frac{3}{2}\\=2x^2-2x- \frac{3}{2}$

The next step is to add y and yz

$y+yz = (x+\frac{1}{2})+(2x^2-3x-\frac{3}{2})\\Combining\ like\ terms\\= 2x^2+x-3x+\frac{1}{2} -\frac{3}{2}\\=2x^2-2x + \frac{1-3}{2}\\=2x^2-2x+\frac{-2}{2}\\=2x^2-2x-1$

The answer is not one of the options which i assume might be a typing mistake.

Hence,

y+yz is: $2x^2-2x-1$

6 0

3 years ago

WILL GIVE BRAINLEST What expression can be used to determine the total cost of buying c pounds of cashews for $ 2.95 per pound

Vadim26 [7]

Answer:

1pound of granola= $3.25

g pound of granola=g*3.25

=3.25g$

1 pound of flour = 0.74$

f pound of flour = f*0.74

= 0.74f$

The expression to determine the total cost of buying the above items= (3.25g+0.74f)

Step-by-step explanation:

3 0

3 years ago

Please help me w dis asap!!!

tino4ka555 [31]

Answer: Magnitude =the square root of x^2+y^2
Since you are trying to find the magnitude, first understand what that means. Magnitude can be considered the “distance” between the initial and terminal points. So to solve this, all you need to do is plug in X and Y into the distance formula which is Magnitude =the square root of x^2+y^2

8 0

4 years ago