[計量] 幾題計量機經
這些題目來自最近的korea機經
1. Given a series k, k-1, k+3, k+1, k+2. Find the ratio of mean and standard
deviation?
A. k+1
B. k
C. 1
D. 1/k
E. 1/(k+1)
=> 這題怎麼算都覺得mean是k+1 standard deviation是2^1/2
選項找不到答案
2. 53 students are divided into P and Q groups. P has 7 batches of n
students each. Q has x students of 5 batches or 6 batches with x students in
5 batches and x+1 students in 6th batch
Col A: x
Col B: n
=>這題題目看不懂
3. Given two line equations x - 2y = -1 and 3x - 4y = 3 and these are the
two lines of y-intercept
and asked to find out the point between these two lines?
A. (1, 0)
B. (0, -1)
C. (0, 0)
D. (2, -1)
E. (2, 1)
=>這題覺得C E都是答案 因為帶入二個方程式會變號
4. A Number 'N' is a positive 3 digit number. If ‘x’ is in its hundredth
place and 'y' is its units place then the number (N - 100x - y) is divisible
by which of the following number?
A. 2
B. 8
C. 108
D. 9
E. 5
=>這題覺得A E都是答案 因為N-100X-Y= x0 個位數為0可被2 5整除 不知道為啥有
二個答案
5. If 8 consecutive positive integers are taken and each integer is divided
by 8, then
Col A: The average of the remainders of 8 consecutive integers when divided
by 8
Col B: 3.5
=>這題A是(0+1+2+3+4+5+6+7)/8 = 3.5嗎?
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07/22 20:50, 1F
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