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erica [24]
3 years ago
12

What's 1.625 rounded to the nearest hundreth

Mathematics
2 answers:
solniwko [45]3 years ago
7 0
1.63 is the answer. :))))))
Maksim231197 [3]3 years ago
7 0

Answer:

1.63

Step-by-step explanation:

hope this helps :3

if it did pls mark brainliest

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Vilka [71]

Answer:

The third one is the one I would choose

Hope this helped :)

Step-by-step explanation:

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3 years ago
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4-It has been a bad day for the market, with 70% of securities losing value. You are evaluating a portfolio of 20 securities and
riadik2000 [5.3K]

Answer:

b) 0.0007

c) 0.4163

d) 0.2375

Step-by-step explanation:

We are given the following:

We treat securities lose value as a success.

P(Security lose value) = 70% = 0.7

Then the securities lose value follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 20.

a) Assumptions

  • There are 20 independent trials.
  • Each trial have two possible outcome: security loose value or security does not lose value.
  • The probability for success of each trial is same, p = 0.7

b) P(all 20 securities lose value)

We have to evaluate:

P(x = 20)\\= \binom{20}{0}(0.7)^0(1-0.7)^{20}\\= 0.0007

0.0007 is the probability that all 20 securities lose value.

c) P(at least 15 of them lose value.)

P(x \geq 15)\\= P(x=15) + P(x = 16) + P(x=17) + P(x=18) +P(x = 19) +P(x = 20)\\ \binom{20}{15}(0.7)^{15}(1-0.7)^{5} +...+ \binom{20}{20}(0.7)^{20}(1-0.7)^{0} \\=0.4163

d) P(less than 5 of them gain value.)

P(gain value) = 1 - 0.7 = 0.3

P(x < 5)\\= P(x=0) + P(x = 1) + P(x=2) + P(x=3) +P(x = 4)\\ \binom{20}{0}(0.3)^{0}(1-0.3)^{20} +...+ \binom{20}{4}(0.3)^{4}(1-0.3)^{16} \\=0.2375

7 0
3 years ago
Subtract a4 + 4a²b2 --- 264 from –3a4 + 5a%b2 + 264.
xxMikexx [17]
The answer is -2a^4+4a^2b^2+5b^2a%
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3 years ago
Joe takes out a loan for $19,000. He will pay the loan back monthly. The interest rate is 7.6% per year and the length of the lo
Y_Kistochka [10]
I believe it should be 8,000
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2 years ago
Tell me the answer for each box its on classkick and i can see if its wrong
Licemer1 [7]

Answer:

$19.35

Step-by-step explanation:

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