A secret code is designed by choosing a letter from the alphabet and then choosing a digit from 0-9. which equation below correctly represents the probability of choosing the secret code “7Q” according to the picture?

Answers

Answer 1

Answer:

This is the only option that correctly represents the probability of choosing the secret code “7Q” according to the picture. Thus, option (D) is correct.

Event - 1: Choosing a letter from the alphabet that is Q.

Let us assume the probability of happening of event 1 is P(Q).

Event - 2: Choosing a digit from 0-9 that is 7.

Let us assume the probability of happening of event 1 is P(7).

Now, we need to choosing the secret code that is 7Q.

We need to multiply both events to get the desired result.

Thus,

$P(7 \cap Q)=P(7) * P(Q)$

This is the only option that correctly represents the probability of choosing the secret code “7Q” according to the picture.

To know more about it, please refer to the link:

brainly.com/question/17015302

Answer 2

Answer:

Answer:

Option 4: P(7∩Q) = P(7) × P(Q)

Step-by-step explanation:

P(7∩Q) represents the probability of choosing the secret code "7Q".

If A and B are independent events, then,

P(A∩B) = P(A) × P(B)

Let A be the event of choosing a number from 0-9 and

B be the event of choosing an alphabet.

Clearly, A and B are independent.

Therefore,

P(7∩Q) = P(7) × P(Q)

Related Questions

gow do you round 198 731 to nearest 1000 and to the nearest 10 000 answer quickly don't have enough time
Rewrite the expression 3 times 4 times 5 times m times n using the fewest numbers of symbols and characters possible
What is the unit rate of 42 gallons in 7 minutes
You are planning to make and sell three different sizes if cylindrical candles. You buy 1 cubic foot of candle wax for $20 to make 8 candles of each size.a.)design the candles. What are the dimensions of each size of candle? b) You want to make a profit of $100. Decide on a price for each size of candle. c) Did you set the prices so that they are proportional to the volume of each size of candle? Why or why not?
Simplify. 10/27 divided by 5/9

Suppose a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 1104 days? How much polonium is in the sample 1104 days later?9 ; 0.07 g
8 ; 2,2622 g
8 ; 4.75 g
8 ; 0.15 g

Answers

To find the number of half lives divide the total number of days by the number of days for 1 half live:

1104 / 138 = 8

There are 8 half lives.

To find the total amount left multiply the starting amount by 1/2 to the 8th power:

38 * 0.5^8 = 0.148 = 0.15 grams

The answer is the last one.

Answer:

D. 8; 0.15 g

Step-by-step explanation:

We have been given that a a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days.

To find the half-lives of polonium-210, we will divide 1104 by 138.

$\text{Number of half lives}=\frac{\text{Total days}}{\text{Half-life}}$

$\text{Number of half lives}=(1104)/(138)$

$\text{Number of half lives}=8$

Therefore, there are 8 half-lives will occur in 1104 days.

$A=a\cdot ((1)/(2))^{(t)/(h)}$

$A=38\text{ g}\cdot (0.5)^{(1104)/(138)}$

$A=38\text{ g}\cdot (0.5)^(8)$

$A=38\text{ g}\cdot 0.00390625$

$A=0.1484375\text{ g}$

$A\approx 0.15\text{ g}$

Therefore, 0.15 gm of the polonium will be left after 1104 days.

If 16 counters are 4/9 then what is One

Answers

36...

divide your 16 by 4, so that you have 1/9. You then multiply the resulting number(4) by your denominator, 9. 4 times 9 = 36

What is the sum of r + s when r = –16.2 and s = –18.5?A.
–34.7

B.
–2.3

C.
2.3

D.
34.7

Answers

r + s

First, substitute your numbers in. / Your problem should look like: $-16.2 + -18.5$
Second, simplify. / Your problem should look like: $-34.7$

Answer: A) -34.7

The dot plot below shows how many laps each student in Coach Toni's gym class ran one day.What is the mean absolute deviation of the data set shown?
A. 30
B. 12.5
C. 5
D. 7