a store advertises that customers can take 25%off the original price and then take an extra 10%off is this 35% of? explain

Answer:

Hence experimental probability that all 3 coins show the same result when he tossed it for 50 times and 8 of those are of success is 0.04

Step-by-step explanation:

Given:

3 coins are tossed at same time

No of trails are 50 and

success for trails are 8.

To Find:

Experimental probability for 3 coins that getting all heads or all tails.

Solution:

Now

When only 3 coins are tossed probability that getting all heads is  as follows:

Calculating the sample space of the event

Event is 3 coins are tossed at a time

So Sample space S={HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}

n(S)=8

No of trails getting all heads is 1

So P(getting all heads )=1/8

Same of tail  i.e. 1/8

Adding both will be required probability for getting all heads or tails

here or ' operator so Addition

1/8+1/8=2/8

=1/4

1/4 is probability that the all heads or all tails when coins is tossed one time

but here it is about 50 times and probability if successs trails are 8

Hence

Now

Probability of success P=8/50=0.16

Probability  of getting all heads and all tails in 50 trails of which 8 are only success

Hence required Probability =Probability of success *Probability of getting all heads or tails

=0.16*(1/4)

=0.16*0.25

=0.04

Hence experimental probability that all 3 coins show the same result when he tossed it for 50 times and 8 of those are of success is 0.04

Answer:

The answer is b

Step-by-step explanation:

Answer:

If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

Step-by-step explanation:

For option A,

If they both workout for minutes,

Alina's time is

and Dane's time is

The difference is

If they both work out for 100 minutes, then Dane did 10 more minutes of cardio exercise than Alina.

Since is not fixed, this statement is false.

For option B,

If Alina's work out  was 80 minutes, then she spent minutes on cardio exercise.

If Dane's work out  was 48 minutes, then he spent minutes on cardio exercise.

Hence both spent the same amount of time on cardio exercise.

The correct answer is option B

For option C,

If they both workout for minutes, then

Alina's time is

and Dane's time is

The difference is

If they both work out for 60 minutes, then Dane did 9 more minutes of cardio exercise than Alina and not 10.

This statement is false

For option D,

We cannot tell whether Alina spent more or less time than Dane,unless we know the time both spent for the entire work out.