Intr-o grupa, 3 elevi au masurat lungimea unui creion si au obtinut urmatoarele valori: 16,2 cm;16,5 cm si respective 16,1 cm. Aflati

Question

Intr-o grupa, 3 elevi au masurat lungimea unui creion si au obtinut urmatoarele valori: 16,2
cm;16,5 cm si respective 16,1 cm. Aflati valoarea medie a valorilor masurate si erorile obtinute
de fiecare elev.

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Kim Chi 3 days 2021-07-19T14:03:46+00:00 1 Answers 1 views 0

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    0
    2021-07-19T14:05:10+00:00

    Answer:

    Explanation:

    In a group, 3 students measured the length of a pencil and obtained the following values: 16.2

    cm, 16.5 cm and 16.1 cm, respectively. Find the average value of the measured values ​​and the errors obtained by each student.

    Average value can be calculated by finding the mean of the values

    Average value = Σx / N

    A•V = (16.2 + 16.5 + 16.1) / 3

    A.V = 48.8 / 3

    A.V = 16.27cm

    x~ = 16.27 cm

    Each student error

    If we assume the true value is average value, then, each student error can be calculated using

    e = |x~ – x|

    e = 16.27 – 16.2

    e = 0.07 cm

    Also,

    e = 16.27 – 16.5

    e = -0.23 cm

    e = 0.23 cm, due to absolute value

    Also,

    e = 16.27 – 16.1

    e = 0.17 cm

    In Spanish

    El valor promedio se puede calcular encontrando la media de los valores

    Valor promedio = Σx / N

    A • V = (16,2 + 16,5 + 16,1) / 3

    A.V = 48.8 / 3

    A.V = 16.27cm

    x ~ = 16,27 cm

    Cada error del alumno

    Si asumimos que el valor verdadero es el valor promedio, entonces, cada error del estudiante puede calcularse usando

    e = | x ~ – x |

    e = 16,27 – 16,2

    e = 0.07 cm

    También,

    e = 16.27 – 16.5

    e = -0,23 cm

    e = 0.23 cm, debido al valor absoluto

    También,

    e = 16.27 – 16.1

    e = 0,17 cm

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