Help me with this please

Consider a binomial experiment with n = 5 trials where the probability of success on a single trial is p = 0.30. (a) Find P(r =

anyanavicka [17]

Answer:

0.16807 ; 0.83193

Step-by-step explanation:

Given that:

Number of trials, n = 5

Probability of success, p = 0.30

P(r = 0)

Using the binomial probability relation :

P(x =r) = nCr * p^r * (1 - p)^(n - r)

(a) Find P(r = 0).

P(r = 0) = 5C0 * 0.3^0 * (0.7)^(5- 0)

= 1 * 1 * 0.16807

= 0.16807

(b) Find P(r ≥ 1) by using the complement rule

P(r ≥ 1) = 1 - P(r = 0)

P(r ≥ 1) = 1 - 0.16807

P(r ≥ 1) = 0.83193

3 0

3 years ago

A dealer earns a profit of 8$ per bag of white cement and a loss of 5$ per bag of grey cement.

Natali [406]

Answer :-

loss = 1000$
4000

Step by step explanation :-

1#

Profit on 3000 bags of white cement sold = 3000 × 8 = 24000

loss on 5000 bags of grey cement sold = 5000 × 5 = 25000

Alternatively: 

Net loss = ( 25000 - 24000 ) = 1000$
profit/ loss = $ [3000 × 8 - 5000 × 5 ]
$ [24000 - 25000]
-1000$

As the result of transaction is negative/ loss

Loss = 1000$

2#

Loss on the scale of 6400 grey bags = 6400 × 5 = 32,000

In order to have no profit, profit from the Cello white cement should be 32000.

Number of white cement bags to be sold = 32000 / 8 = 4000

4000 why cement bags and 6400 grey cement bags are sold in order to have no profit and no loss

Hope it helps ~

5 0

2 years ago

Please help (20pt an and will mark as brainliest)

Anastaziya [24]

Answer:

The Proof is given below.

Step-by-step explanation:

Given:

P is the center of Circle

∠ONE ≅ ∠TEN

To Prove:

∠5 ≅ ∠6

Proof:

Exterior Angle Theorem:

Exterior Angle Property of a Triangle states that measure of exterior angle of a triangle is equals to the sum of measures of its interior opposite angles.

STATEMENT REASON

1. So In ΔONE,

$\angle 5=\angle ONE+\angle 2$ 1. Exterior Angle Property of a Triangle.

2. Similarly In ΔTEN,

$\angle 6=\angle TEN+\angle 1$ 2. Exterior Angle Property of a Triangle.

3. But , ∠ONE ≅ ∠TEN 3. Given

4. And P is the center of circle So

$PN=PE$ 4.radius of same circle

5. ΔPEN is an Isosceles triangle,

∴ ∠ 1 ≅ ∠ 2 5. Isosceles triangle property

6. ∴ ∠5 ≅ ∠6 6. From 3 and 5 Transitive Property.........Proved

8 0

4 years ago

Help me plz I only have 20 min!!

oksano4ka [1.4K]

Answer: i think the equation would be 7n=8.61 and the cost would be 1.23

Step-by-step explanation:

7 0

3 years ago

HELP!

lidiya [134]

Step-by-step explanation:

So it's really easy if you read it carefully, the only thing you need to do is 63,000 - 6,922 = _____ and that's it hope it helps

3 0

3 years ago