The scores for a certain test of intelligence are normally distributed with mean 90 and standard...

Transcribed Image Text:

The scores for a certain test of intelligence are normally distributed with mean 90 and standard deviation 17. Find the 90th percentile of these scores. the icon to view the table of standard scores and percentiles. Click The 90th percentile is. (Round to the nearest whole number as needed.) Z-score Percentile -3.5 -3.0 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2.0 1.9 -1.8 -1.7 1.6 - 1.5 -1.4 00.02 00.13 00.19 00.26 00.35. 00.47 00.62 00.82 01.07 01.39 01.79 02.28 02.87 03.59 04.46 05.48 06.68 08.08 z-score - 1.00 -0.95 -0.90 0.85 -0.80 -0.75 -0.70 -0.65 -0.60 -0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -0.15 Percentile Z-score Percentile z-score 15.87 0.00 50.00 1.1 17.11 0.05 51.99 1.2 18.41 0.10 53.98 1.3 19.77 0.15 55.96 1.4 21.19 0.20 57.93 1.5 22.66 0.25 59.87 1.6 24.20 0.30 61.79 1.7 25.78 0.35 63.68 1.8 27.43 0.40 65.54 1.9 29.12 0.45 67.36 2.0 30.85 0.50 69.15 2.1 32.64 0.55 70.88 2.2 34.46 0.60 72.57 2.3 36.32 0.65 74.22 2.4 38.21 0.70 75.80 2.5 40.13 0.75 77.34 2.6 42.07 0.80 78.81 2.7 44.04 0.85 80.23 2.8 Percentile 86.43 88.49 90.32 91.92 93.32 94.52 95.54 96.41 97.13 97.72 98.21 98.61 98.93 99.18 99.38 99.53 99.65 99.74 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2.0 -1.9 -1.8 -1.7 1.6 -1.5 -1.4 -1.3 -1.2 -1.1 00.19 00.26 00.35 00.47 00.62 00.82 01.07. 01.39 01.79 02.28 02.87 03.59 04.46 05.48 06.68 08.08 09.68 11.51 13.57 - 0.90 - 0.85 -0.80 -0.75 -0.70 -0.65 -0.60 -0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -0.15 -0.10 -0.05 -0.00 18.41 19.77 21.19 22.66 24.20 25.78 27.43 29.12 0.10 0.15 0.20 0.25 0.30 0.35 Print 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 30.85 32.64 34.46 36.32 38.21 40.13 42.07 44.04 46.02 48.01 50.00 Standard Scores and Percentiles 53.98 55.96 57.93 59.87 61.79 63.68 65.54 67.36 69.15 70.88 72.57 74.22 75.80 77.34 78.81 80.23 81.59 82.89 84.13 Done 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.5 90.32 91.92 93.32 94.52 95.54 96.41 97.13 97.72 98.21 98.61 98.93 99.18 99.38 99.53 99.65 99.74 99.81 99.87 99.98 The scores for a certain test of intelligence are normally distributed with mean 90 and standard deviation 17. Find the 90th percentile of these scores. the icon to view the table of standard scores and percentiles. Click The 90th percentile is. (Round to the nearest whole number as needed.) Z-score Percentile -3.5 -3.0 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2.0 1.9 -1.8 -1.7 1.6 - 1.5 -1.4 00.02 00.13 00.19 00.26 00.35. 00.47 00.62 00.82 01.07 01.39 01.79 02.28 02.87 03.59 04.46 05.48 06.68 08.08 z-score - 1.00 -0.95 -0.90 0.85 -0.80 -0.75 -0.70 -0.65 -0.60 -0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -0.15 Percentile Z-score Percentile z-score 15.87 0.00 50.00 1.1 17.11 0.05 51.99 1.2 18.41 0.10 53.98 1.3 19.77 0.15 55.96 1.4 21.19 0.20 57.93 1.5 22.66 0.25 59.87 1.6 24.20 0.30 61.79 1.7 25.78 0.35 63.68 1.8 27.43 0.40 65.54 1.9 29.12 0.45 67.36 2.0 30.85 0.50 69.15 2.1 32.64 0.55 70.88 2.2 34.46 0.60 72.57 2.3 36.32 0.65 74.22 2.4 38.21 0.70 75.80 2.5 40.13 0.75 77.34 2.6 42.07 0.80 78.81 2.7 44.04 0.85 80.23 2.8 Percentile 86.43 88.49 90.32 91.92 93.32 94.52 95.54 96.41 97.13 97.72 98.21 98.61 98.93 99.18 99.38 99.53 99.65 99.74 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2.0 -1.9 -1.8 -1.7 1.6 -1.5 -1.4 -1.3 -1.2 -1.1 00.19 00.26 00.35 00.47 00.62 00.82 01.07. 01.39 01.79 02.28 02.87 03.59 04.46 05.48 06.68 08.08 09.68 11.51 13.57 - 0.90 - 0.85 -0.80 -0.75 -0.70 -0.65 -0.60 -0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -0.15 -0.10 -0.05 -0.00 18.41 19.77 21.19 22.66 24.20 25.78 27.43 29.12 0.10 0.15 0.20 0.25 0.30 0.35 Print 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 30.85 32.64 34.46 36.32 38.21 40.13 42.07 44.04 46.02 48.01 50.00 Standard Scores and Percentiles 53.98 55.96 57.93 59.87 61.79 63.68 65.54 67.36 69.15 70.88 72.57 74.22 75.80 77.34 78.81 80.23 81.59 82.89 84.13 Done 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.5 90.32 91.92 93.32 94.52 95.54 96.41 97.13 97.72 98.21 98.61 98.93 99.18 99.38 99.53 99.65 99.74 99.81 99.87 99.98

Answer rating: 100% (QA)

Consider the random variable X which represents the scores of an intelligence test ... View the full answer