Answer:
20%
Step-by-step explanation:
1. subtract the new price from the original price
2. divide the difference by the original number
÷
3. multiply this number by 100
The following formula relates 3 equantities: force(F),mass(m),and acceleration(a)
1 answer:
We know, Force = mass × acceleration
( i ) :
Given,
Force = 25 units
Mass = 10 units
Acceleration = ?
Solution,
Applying the formula of force,
➡ Force = mass × Acceleration
⏩ 25 = 10 × acceleration
⏩ 25 / 10 =acceleration
⏩ 2.5 units = acceleration
( ii ) :
Given,
Force = 25 units
Acceleration = 5 units
Mass =?
Solution :
Applying formula,
➡ Force = mass × acceleration
⏩ 25 = 5 × mass
⏩ 25 / 5 = mass
⏩ 5 units = mass
( i ) :
Given,
Force = 25 units
Mass = 10 units
Acceleration = ?
Solution,
Applying the formula of force,
➡ Force = mass × Acceleration
⏩ 25 = 10 × acceleration
⏩ 25 / 10 =acceleration
⏩ 2.5 units = acceleration
( ii ) :
Given,
Force = 25 units
Acceleration = 5 units
Mass =?
Solution :
Applying formula,
➡ Force = mass × acceleration
⏩ 25 = 5 × mass
⏩ 25 / 5 = mass
⏩ 5 units = mass
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Answer:
a) 0.280
b) 0.300
c) No, preference is not independent of gender. Since the P(N) (0.29) is not equal to P(N|M) (0.28) and/or P(N|F) (0.30), the preference and gender are not completely, statistically independent. It's very close though.
Step-by-step explanation:
Let the probability that the somebody surveyed is a male be P(M)
Let the probability that somebody surveyed is female be P(F)
Let the probability that somebody surveyed picked the name-brand milk be P(N)
Let the probability that somebody surveyed picked the store-brand milk be P(St)
Let the probability that somebody surveyed picked the something else be P(So)
a) Given that an American is a male, what is the probability that he prefers name-brand milk = P(N|M) = 319/1138 = 0.280
b) Given that an American is a female, what is the probability that she prefers name-brand milk = P(N|F) = 341/1138 = 0.300
c) To investigate if the preference and gender are independent or not, we need the P(N)
P(N) = probability that an average an Average American (male or female) will prefer a nam-brand milk = 660/2276 = 0.290.
Since the P(N) (0.29) is not equal to P(N|M) (0.28) and/or P(N|F) (0.30), the preference and gender are not statistically independent. It's very close though.
One may note that (1.6 , 6) is just another way to say x = 1.6 when y = 6.
and that (8 , y) is another way to say x = 8 and y is who knows.
and that (8 , y) is another way to say x = 8 and y is who knows.