Answer:
Step-by-step explanation:
Assuming a binomial distribution for the number of U.S. households that owned a computer in 2001. The formula for binomial distribution is expressed as
P(X = r) = nCr × q^(n - r) × p^r
Where
p = probability of success
q = probability of failure
n = number of sample
From the information given,
p = 56.5% = 56.5/190 = 0.565
q = 1 - p = 1 - 0.565 = 0.435
n = 3
We want to determine P(x greater than or equal to 1). This is also expressed as
1 - P(x lesser than or equal to 1)
P(x lesser than or equal to 1) = P(x = 0) + P(x =1)
P(x = 0) = 3C0 × 0.435^(3 - 0) × 0.565^0 = 0.082
P(x = 1) = 3C1 × 0.435^(3 - 1) × 0.565^1 = 0.32
P(x greater than or equal to 1) = 0.082 + 0.32 = 0.402
Answer:
(x + 2)² + (y - 5)² = 7²
Step-by-step explanation:
Incomplete question. I believe you meant, "write the equation of the circle with center at (-2, 5) and radius 7.
That would be:
(x + 2)² + (y - 5)² = 7²
The Answer Is 14/15 Hope This Helps.
Answer: C
Step-by-step explanation:
Just move the number by the log above the equation
Answer:
The key is finding a common # on the bottom (aka: a common 'denominator')
once you do this, you can easily add and subtract them!
Step-by-step explanation:
EX:
1/2 + 2/3 = ?
<u>*EASIEST TRICK!!*</u>
take your 2nd denominator: (3) and multiply it by the entire (1st fraction): 1/2
<em>(when we MULTIPLY fractions, it is easy as pie, we can just multiply across the top and across the bottom) in this case, we will multiply both top and bottom by the 2nd denominator (3)</em>
(1 x 3)/(2 x 3) = 3/6 <em>(3/6 is another way of saying 1/2, so we're good!)</em>
now take the 1st denominator (2), and multiply the entire 2nd fraction by that:
(2 x 2)/(3 x 2) = 4/6
<em>now we have 6 on the bottom of both! time for the magic:</em>
3/6 + 4/6 = 7/6
but wait! (that means we have 7 slices of a 6-piece pie! ...so we <em>actually </em>have, 1 full (6-piece pie) and 1 slice leftover! <em>(awww yeeea)</em>
<em>so, 7/6</em><em> --> </em><em>1 </em><em>(full pie) </em><em>1/6 </em><em>(leftover!)</em>
<u><em>now to put it all back together:</em></u>
1/2 + 2/3 = 1 & 1/6
