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never [62]
3 years ago
10

If a coin is flipped three times what is the probability of getting heads at least twice. AND PLS HELP I NEED ANSWERS FOR A 21 P

ROBLEM MATH TEST I Am WELLING GIVE HECK OF POINTS FOR THIS And PLS GIVE RIGHT answers I been HAVING ALL F’s FOR 3 SERMERTS PLS HELP ME OUT GUYS and I keep leaving questions
Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
5 0

Answer:2/3

Step-by-step explanation: the chances are two outa three chances if this dont help at least i tried

Alex787 [66]3 years ago
4 0

Answer:

2/3

Step-by-step explanation:

Atleast 2 Heads in 3 Coin Tosses

0.5 is the probability of getting 2 Heads in 3 tosses.

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At one time the price of gasoline was $1.279 a gallon. Then the price
ELEN [110]

Answer:

1.6627 (money wise, $1.66)

Step-by-step explanation:

Since its 130%, you know there was already a whole increase. So first you would do 1.279 + 1.279, which would give you 2.558. Then you need to calculate 30% of 1.279 for the rest of the increase. That gives you 0.3837 Add 2.558 and 0.3837 together, which would give you 2.9417. To get the INCREASE, you would have to subtract the new total from the original price, so 2.9417 - 1.279. This would give you 1.6627.

5 0
3 years ago
3. About how much of the earth's surface is deserts?
Murrr4er [49]

Answer:

B- One-Quarter

Step-by-step explanation:

8 0
3 years ago
Jenna is eating 2 oranges a day to help her diet. She is doing this for all 42 of her oranges. How many days of her diet will Je
ddd [48]

answer:

21 days

Step-by-step explanation:

42/2=21

8 0
3 years ago
I need to know how to set up this problem. Please help
ELEN [110]

your total would be $10 and you have 1 variable. so it would be ($2x) for the pounds of veggies, plus the 3.50 for the basket, equals $10. then solve for X from there

7 0
3 years ago
An insurance company has 10,000 automobile policyholders. The expected yearly claim per policyholder is $240, with a standard de
elena55 [62]

Answer:

almost 0%

Step-by-step explanation:

Given that for an insurance company with 10000 automobile policy holders, the expected yearly claim per policyholder is $240 with a standard deaviation of 800

using normal approximation, the probability that the total yearly claim exceeds $2.7 million is calculated as follows:

Sea sumatoria de x = SUMX, tenemos que:

P (SUMX \geq 2700000) = P(\frac{SUMX - 240*10000}{800 *\sqrt{10000} } \geq \frac{2700000 - 240*10000}{800 *\sqrt{10000} })

= P (z\geq \frac{2700000 - 240*10000}{800 *\sqrt{10000}})

= P (z => 3.75)

= 1 - P ( z < 3.75)

P = 1 - 0.999912

P = 0.000088

Which means that the probability is almost 0%

4 0
3 years ago
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