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Leona [35]
4 years ago
11

Which is an example of dependent events? rolling a die three times/ spinning a spinner two times/ choosing two numbered slips fr

om a hat with replacement/ choosing two socks from a drawer of black and white socks without replacement? need answer fast plz guys
Mathematics
2 answers:
elena-s [515]4 years ago
6 0
The fourth event is dependent.  Not replacing draws changes the probability of drawing a certain number or thing.

Rus_ich [418]4 years ago
4 0

Answer:

Two or more events are said to be Dependent if occurence of one is dependent on the occurence of other.

For example: In a bag there are three different colored balls each being 5 in number.Drawing three balls one by one without replacement from the bag is a dependent event.

Out of the given options following are example of dependent events.

1. Rolling a die three times

 When you roll a die three times , each roll is independent of other.So, it is an example of Independent event.

2. Spinning a spinner two times

When you Spin a Spinner two times , each roll is independent of other.So, it is an example of Independent event.

3.Choosing two numbered slips from a hat with replacement

As you are replacing the numbered slips from the hat,it will not alter the total possible Outcome.So, it is an example of Independent event.

4. Choosing two socks from a drawer of black and white socks without replacement

Drawing Socks from the drawer and then not replacing the socks after each event will affect the total Possible outcome.So,each draw will become dependent on another.

  it is an example of Dependent event.

Option 4: Choosing two socks from a drawer of black and white socks without replacement , is an example of dependent event.

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yulyashka [42]

Answer:

7 and 8

Step-by-step explanation:

{x}^{2}  + 7x + 12

(x+3)(x+4)

{x}^{2}  + 8x + 12

(x+2)(x+6)

5 0
3 years ago
How long will it take for the 1.35-mg sample of 236Pu in Example 19.4 to decay to 0.100 mg? (The half-life of plutonium-236 is 2
dedylja [7]

Answer:

  10.7 years

Step-by-step explanation:

The decay equation can be written as ...

  remaining = initial × (1/2)^(t/(half-life))

Filling in the given values, we can solve for t.

  0.100 = 1.35 × (1/2)^(t/2.86)

  0.100/1.35 = (1/2)^(t/2.86) divide by 1.35

Taking logs transforms this to a linear equation:

  log(0.100/1.35) = (t/2.86)log(1/2)

Since log(a/b) = -log(b/a), we can multiply both sides by -1 and simplify the logs a bit.

  log(1.35/.1) = t·(log(2)/2.86)

  2.86·log(13.5)/log(2) = t ≈ 10.7 . . . . years

The decay time is about 10.7 years.

6 0
4 years ago
archy bought 15 gallons of gas for $23.85. Joe bought 16 gallons of gas for $24.48. who paid less per gallon?
tekilochka [14]
Archy:  15 gallons ... $23.85
               1 gallon ...$ x = ?

x * 15 = 1 * 23.85    /15
x = 23.85 / 15
x = $1.59 per gallon

Joe:  16 gallons ... $24.48
           1 gallon ... $ y = ?

y * 16 = 1 * 24.48    /16
y = 24.48 / 16
y = $1.53 per gallon

Result: Joe paid less per gallon.
3 0
3 years ago
What property is X=X?
masha68 [24]
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a number equals itself (x=x)
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A scammer scanned 63 photos in 9 minute if it scans photos at a constant rate it can scan___ photos in 21 minutes (20 points)
Nikitich [7]

The answer to this is 147. Just divided 9 by 63 :)

4 0
3 years ago
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