標題:
英文數學工課,今日急要答案,數學高手幫幫忙
發問:
英文數學工課資料圖:http://f.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=cade23d2271f95caa6a09ab2fc275308/b3b7d0a20cf431ad963b65954936acaf2fdd98b4.jpg(要求步驟)英文數學工課資料圖:http://h.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=ca0dbccdf1deb48ffb3ca9dac52f161f/0d338744ebf81a4c66f8ca65d52a6059242da657.jpg(要求步驟)英文數... 顯示更多 英文數學工課資料圖:http://f.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=cade23d2271f95caa6a09ab2fc275308/b3b7d0a20cf431ad963b65954936acaf2fdd98b4.jpg (要求步驟) 英文數學工課資料圖:http://h.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=ca0dbccdf1deb48ffb3ca9dac52f161f/0d338744ebf81a4c66f8ca65d52a6059242da657.jpg (要求步驟) 英文數學工課資料圖:http://a.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=89c5a087b251f819f1700b4eef8466db/f9dcd100baa1cd11c25c548cbb12c8fcc2ce2db7.jpg (要求步驟) 英文數學工課資料圖:http://c.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=02aaeb858418367aaddc77d91b43a7e2/bba1cd11728b47100be9db60c1cec3fdfd032353.jpg (要求步驟)
最佳解答:
1. (i) All possible outcomes = HHH, HHT,HTH, HTT, THH, THT, TTH, TTT (ii) No. of possible outcomes = 8 (iii) Favorable outcomes = HHH, HHT, HTH,HTT, THH, THT, TTH (iv) No. of favorable outcomes = 7 (v) P(at least one head) = 7/8 ====== 2. Refer to the tree diagram : https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcR4XBO4HiFYFnlbkfA2-qZmRjGbD3a3DCr1HUfiMw4RrvuwzY054w P(only one tail) = P(X = 2) = 3/8 ===== 3. dice : 1, 2, 3, 4, 5, 6 coin : head, tail P(an odd number and a head) = P(1, 3, 5) x P(head) = (3/6) x (1/2) = 1/4 ====== 4. (i) P(blue eyes) = 45/300 = 3/20 (ii) P(green eyes) = (300-150-45)/300 = 105/300 = 7/20 ===== 5. Total outcomes : 10 to 99 Favorable outcomes : 11, 22, 33, 44, 55, 66, 77, 88, 99 No. of total outcomes = 99 - 10 + 1 = 90 No. of favorable outcomes = 9 The required probability = 9/90 = 1/9 ===== 6. (i) P(an odd number) = P(1) + P(3) + P(5) = (16/100) + (14/100) + (18/100) = 48/100 = 12/25 (ii) P(a number larger than 4) = P(5) + P(6) = (18/100) + (20/100) = 38/100 = 19/50 (iii) P(a number not smaller than 3) = P(30 + P(4) + P(5) + P(6) = (14/100) + (17/100) + (18/100) + (20/100) = 69/100 ===== 7. (i) Empirical probability of getting a red ball = 60/100 = 3/5 (ii) Empirical probability of getting a green ball = 40/100 = 2/5 (iii) The estimated total number of red balls = 800 x (3/5) = 480 (iv) The estimated total number of green balls = 800 x (2/5) = 320
其他解答:
英文數學工課,今日急要答案,數學高手幫幫忙
發問:
英文數學工課資料圖:http://f.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=cade23d2271f95caa6a09ab2fc275308/b3b7d0a20cf431ad963b65954936acaf2fdd98b4.jpg(要求步驟)英文數學工課資料圖:http://h.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=ca0dbccdf1deb48ffb3ca9dac52f161f/0d338744ebf81a4c66f8ca65d52a6059242da657.jpg(要求步驟)英文數... 顯示更多 英文數學工課資料圖:http://f.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=cade23d2271f95caa6a09ab2fc275308/b3b7d0a20cf431ad963b65954936acaf2fdd98b4.jpg (要求步驟) 英文數學工課資料圖:http://h.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=ca0dbccdf1deb48ffb3ca9dac52f161f/0d338744ebf81a4c66f8ca65d52a6059242da657.jpg (要求步驟) 英文數學工課資料圖:http://a.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=89c5a087b251f819f1700b4eef8466db/f9dcd100baa1cd11c25c548cbb12c8fcc2ce2db7.jpg (要求步驟) 英文數學工課資料圖:http://c.hiphotos.baidu.com/zhidao/wh%3D450%2C600/sign=02aaeb858418367aaddc77d91b43a7e2/bba1cd11728b47100be9db60c1cec3fdfd032353.jpg (要求步驟)
最佳解答:
1. (i) All possible outcomes = HHH, HHT,HTH, HTT, THH, THT, TTH, TTT (ii) No. of possible outcomes = 8 (iii) Favorable outcomes = HHH, HHT, HTH,HTT, THH, THT, TTH (iv) No. of favorable outcomes = 7 (v) P(at least one head) = 7/8 ====== 2. Refer to the tree diagram : https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcR4XBO4HiFYFnlbkfA2-qZmRjGbD3a3DCr1HUfiMw4RrvuwzY054w P(only one tail) = P(X = 2) = 3/8 ===== 3. dice : 1, 2, 3, 4, 5, 6 coin : head, tail P(an odd number and a head) = P(1, 3, 5) x P(head) = (3/6) x (1/2) = 1/4 ====== 4. (i) P(blue eyes) = 45/300 = 3/20 (ii) P(green eyes) = (300-150-45)/300 = 105/300 = 7/20 ===== 5. Total outcomes : 10 to 99 Favorable outcomes : 11, 22, 33, 44, 55, 66, 77, 88, 99 No. of total outcomes = 99 - 10 + 1 = 90 No. of favorable outcomes = 9 The required probability = 9/90 = 1/9 ===== 6. (i) P(an odd number) = P(1) + P(3) + P(5) = (16/100) + (14/100) + (18/100) = 48/100 = 12/25 (ii) P(a number larger than 4) = P(5) + P(6) = (18/100) + (20/100) = 38/100 = 19/50 (iii) P(a number not smaller than 3) = P(30 + P(4) + P(5) + P(6) = (14/100) + (17/100) + (18/100) + (20/100) = 69/100 ===== 7. (i) Empirical probability of getting a red ball = 60/100 = 3/5 (ii) Empirical probability of getting a green ball = 40/100 = 2/5 (iii) The estimated total number of red balls = 800 x (3/5) = 480 (iv) The estimated total number of green balls = 800 x (2/5) = 320
其他解答:
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