Matematik

Middelværdien

28. april 2011 af ooToa (Slettet) - Niveau: B-niveau

heysa, jeg har en opgave der lyder på at finde middelværdien, altså gennemsnitsalderen, fra en tabel der beskriver tilskadekommende efter nytårsaften. men hvordan finder jeg den når alderen er delt op i grupper som vist nedenunder?

<table class="MsoTableLightShadingAccent3" border="1" cellspacing="0" cellpadding="0" style="border-collapse:collapse;border:none;mso-border-top-alt:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;mso-border-bottom-alt:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 5.4pt 0cm 5.4pt"> <table class="MsoTableLightShadingAccent3" border="1" cellspacing="0" cellpadding="0" style="border-collapse:collapse;border:none;mso-border-top-alt:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;mso-border-bottom-alt:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 5.4pt 0cm 5.4pt"> <td width="93" valign="top" style="width:69.8pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> Aldersgrupper</o:p>

<td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 0-10 år</o:p> <td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 11-20 år</o:p> <td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 21-30 år</o:p> <td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 31-40 år</o:p> <td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 41-50 år</o:p> <td width="93" valign="top" style="width:69.85pt;border-top:solid #9BBB59 1.0pt; mso-border-top-themecolor:accent3;border-left:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;border-right:none;padding:0cm 5.4pt 0cm 5.4pt"> 51-60 år</o:p> <td width="93" valign="top" style="width:69.8pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> Antal skader</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 3</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 12</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 13</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 18</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 4</o:p> <td width="93" valign="top" style="width:69.85pt;border:none;border-bottom:solid #9BBB59 1.0pt; mso-border-bottom-themecolor:accent3;background:#E6EED5;mso-background-themecolor: accent3;mso-background-themetint:63;padding:0cm 5.4pt 0cm 5.4pt"> 5</o:p>

Brugbart svar (2)

Svar #1
28. april 2011 af mette48 (Slettet)

Brug intervaldmidtpunkterne

Svar #2
28. april 2011 af ooToa (Slettet)

mange tak :)

Skriv et svar til: Middelværdien

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